diff --git a/src/args.c b/src/args.c
index 520ae98..47a4d82 100644
--- a/src/args.c
+++ b/src/args.c
@@ -95,6 +95,8 @@ time_t pit_arg_date(char **arg, char *required)
 
     if (required && (!*arg || pit_arg_is_option(arg))) {
         die("missing %s", required);
+    } else if (!strcmp(*arg, "none")) {                                 /* Drop dat value */
+        return -1;
     } else {
         bool alpha_date = isalpha(**arg);
         bool slash_date = (strchr(*arg, '/') != NULL);
@@ -169,6 +171,8 @@ time_t pit_arg_time(char **arg, char *required)
 
     if (required && (!*arg || pit_arg_is_option(arg))) {
         die("missing %s", required);
+    } else if (!strcmp(*arg, "none")) {     /* Drop time value */
+        return -1;
     } else {                                /* Suppored time formats are :MM, HH:MM, and HH */
         char *colon = strchr(*arg, ':');
         if (colon == *arg) {                /* :MM - minutes only */
diff --git a/src/db.c b/src/db.c
index 8d648f3..c1def52 100644
--- a/src/db.c
+++ b/src/db.c
@@ -65,7 +65,7 @@ void pit_init(char *argv[]) {
 
     if (!access(file_name, F_OK)) {
         if (!*arg || strcmp(*arg, "-f")) { /* Do not prompt user if forced init (-f). */
-            printf("%s already exist, do you want to override it [y/N]: ", file_name);
+            printf("%s already exists, do you want to override it [y/N]: ", file_name);
             reply = getchar();
         }
     }
@@ -80,8 +80,8 @@ void pit_info(char *argv[])
 {
     pit_db_load();
     printf("Pit file name:   %s\n", pit_file_name());
-    printf("Created by:      %s on %s", header->created_by, ctime(&header->created_at)); 
-    printf("Last updated by: %s on %s", header->updated_by, ctime(&header->updated_at)); 
+    printf("Created by:      %s on %s\n", header->created_by, format_timestamp(header->created_at)); 
+    printf("Last updated by: %s on %s\n", header->updated_by, format_timestamp(header->updated_at)); 
     printf("Schema version:  %d\n", header->schema_version);
     printf("Projects:        %d\n", projects->number_of_records); 
     printf("Tasks:           %d\n", tasks->number_of_records); 
diff --git a/src/help.c b/src/help.c
index ea8773e..8a2eeaf 100644
--- a/src/help.c
+++ b/src/help.c
@@ -3,7 +3,172 @@
 #include <stdio.h>
 #include "pit.h"
 
+static void usage()
+{
+    char *msg[] = {
+        "usage: pit command [args]\n",
+        "The commands are:",
+        "   init       Create empty pit database or reinitialize an existing one",
+        "   project    Create, search, and manage pit projects",
+        "   task       Create, search, and manage pit tasks",
+        "   note       Create, search, and manage pit notes",
+        "   log        Show chronological pit activity log",
+        "   info       Show summary information about your pit database",
+        "   help       Show help information about pit",
+        "   version    Show pit version number\n",
+        "All commands might be shortened as long as they remain unambiguous. See 'pit help <command>' for more",
+        "information on a specific command.\n", NULL
+    };
+    printa(msg);
+}
+
+static void help_project()
+{
+    char *msg[] = {
+        "Pit project is basic entity used to group related tasks together. In pit project has name and status, neither",
+        "of which have any semantical meaning and are just arbitrary strings.\n", 
+        "Creating a project:\n",
+        "   $ pit project -c name [-s status]\n",
+        "Editing a project:\n",
+        "   $ pit project -e [number] [-n name] [-s status]\n",
+        "Deleting a project:\n",
+        "   $ pit project -d [number]\n",
+        "Viewing a project:\n",
+        "   $ pit project [[-q] number]\n",
+        "Searching projects:\n",
+        "   $ pit project -q [number | [-n name] [-s status]]\n",
+        "Examples:\n",
+        "   $ pit project -c 'My Tasks'",
+        "   created project 1: My Tasks (status: active)\n",
+        "   $ pit project -c 'Feature Requests' -s backlog",
+        "   created project 2: Feature Requests (status: backlog)\n",
+        "   $ pit pro",
+        "     1: (username) [active ] My Tasks         (0 tasks)",
+        "   * 2: (username) [backlog] Feature Requests (0 tasks)\n",
+        "   $ pit p 1 -e -n 'Task and Bugs' -s current",
+        "   1: Task and Bugs (current, 0 tasks)\n",
+        "   $ pit p",
+        "     1: (username) [current] Task and Bugs    (0 tasks)",
+        "   * 2: (username) [backlog] Feature Requests (0 tasks)\n",
+        "   $ pit p -d",
+        "   deleted project 2: Feature Requests\n",
+        "   $ pit p",
+        "   * 1: (username) [current] Task and Bugs (0 tasks)\n", NULL
+    };
+    printa(msg);
+}
+
+static void help_task()
+{
+    char *msg[] = {
+        "In pit a task belongs to particular project. A task has name, status, priority, date, and time. All attributes",
+        "except the task name are optional.\n",
+        "Creating a task:\n",
+        "   pit task -c name [-s status] [-p priority] [-d date] [-t time]\n",
+        "Editing a task:\n",
+        "   pit task -e [number] [-n name] [-s status] [-p priority] [-d date] [-t time]\n",
+        "Deleting a task:\n",
+        "   pit task -d [number]\n",
+        "Viewing a task:\n",
+        "   pit task [[-q] number]\n",
+        "Searching tasks:\n",
+        "   pit task -q [number | [-n name] [-s status] [-p priority] [-d date] [-t time]]\n",
+        "Supported date formats:\n",
+        "   none, 4/26, 4/26/2012, 4/26/12, '4/26 3pm', '4/26 19:30', '4/26/2012 3:15am', '4/26/12 17:00'",
+        "   'Apr 26', 'Apr 26, 2012', 'Apr 26 3pm', 'Apr 26 19:30', 'Apr 26, 12 3:15am', 'Apr 26, 2012 17:00'\n",
+        "Supported time formats:\n",
+        "   none, 17, 17:00, 17:30, 5pm, 1:15am\n",
+        "Examples:\n",
+        "   $ pit task -c 'Hack this'",
+        "   created task 1/1: Hack this (status: open, priority: normal)\n",
+        "   $ pit task -c 'And hack that' -s new -p urgent -d 'Dec 31'",
+        "   created task 2/1: And hack that (status: new, priority: urgent, date: Dec 31, 2010)\n",
+        "   $ pit t",
+        "     1: (username) [open] [normal]              Hack this     (0 notes)",
+        "   * 2: (username) [new ] [urgent] Dec 31, 2010 And hack that (0 notes)\n",
+        "   $ pit t -e 1 -s done -d 10/10 -t 4:30",
+        "   updated task 1: Hack that (status: done, date: Oct 10, 2010, time: 4:30)\n",
+        "   $ pit t",
+        "     1: (username) [done] [normal] Oct 10, 2010 4:30 Hack this     (0 notes)",
+        "   * 2: (username) [new]  [urgent] Dec 31, 2010      And hack that (0 notes)\n",
+        "   $ pit t -d",
+        "   deleted task 2: And hack that\n",
+        "   $ pit t",
+        "   1: (username) [done] [normal] Oct 10, 2010 4:30 Hack this (0 notes)\n", NULL
+    };
+    printa(msg);
+}
+
+static void help_note()
+{
+    puts("pit note is not implemented yet.");
+}
+
+static void help_log()
+{
+    char *msg[] = {
+        "Show summary information about your pit database. This command is as simple as:\n",
+        "   pit log\n", NULL
+    };
+    printa(msg);
+}
+
+static void help_init()
+{
+    char *msg[] = {
+        "Create empty pit database or reinitialize an existing one. Default file name for the pit database",
+        "is ~/.pit -- you can override the default by setting PITFILE environment variable.\n",
+        "   $ pit init [-f]\n",
+        "   -f   force initialization without prompt\n",
+        "Example:\n",
+        "   $ pit init",
+        "   /home/user/.pit already exists, do you want to override it [y/N]: y",
+        "   Created empty /home/user/.pit\n", NULL
+    };
+    printa(msg);
+}
+
+static void help_info()
+{
+    char *msg[] = {
+        "Show summary information about your pit database. This command is as simple as:\n",
+        "   pit info\n", NULL
+    };
+    printa(msg);
+}
+
+static void help_version()
+{
+    puts("No kidding :-)");
+    pit_version();
+}
+
 void pit_help(char *argv[])
 {
-    puts("pit: help is not implemented yet");
+    char *command[] = { "project", "task", "note", "log", "init", "info", "help", "version" };
+    void (*handler[])() = { help_project, help_task, help_note, help_log, help_init, help_info, usage, help_version };
+
+    if (!argv[1]) {
+        usage();
+    } else {
+        register int i, candidate = -1;
+
+        for(i = 0;  i < ARRAY_SIZE(command);  i++) {
+            if (strstr(command[i], argv[1]) == command[i]) {
+                if (candidate < 0) {
+                    candidate = i;
+                } else {
+                    printf("no help, <%s> is a bit ambiguous\n", argv[1]);
+                    usage();
+                }
+            }
+        }
+
+        if (candidate < 0) {
+            printf("no help, <%s> is unknown command\n", argv[1]);
+            usage();
+        } else {
+            handler[candidate]();
+        }
+    }
 }
\ No newline at end of file
diff --git a/src/object.h b/src/object.h
index a6cdcbd..e757e1a 100644
--- a/src/object.h
+++ b/src/object.h
@@ -16,8 +16,6 @@ typedef struct _Project {
     char   name[128];               /* Project name. */
     char   status[16];              /* Project status. */
     int    number_of_tasks;         /* Number of tasks for the project. */
-    int    created_by;              /* Who created the project? */
-    int    updated_by;              /* Who last updated the project? */
     time_t created_at;              /* When the project was created? */
     time_t updated_at;              /* When the project was last updated? */
 } Project, *PProject;
diff --git a/src/pager.c b/src/pager.c
index 55ee4b3..1e15ffc 100644
--- a/src/pager.c
+++ b/src/pager.c
@@ -45,7 +45,7 @@ static void print_tasks(PPager ppager)
     char **pentry;
     char format[64];
 
-    sprintf(format, "%%c %%%dd: (%%-%ds) [%%-%ds] [%%-%ds] %%-%ds  (%%d note%%s)\n",
+    sprintf(format, "%%c %%%dd: (%%-%ds) [%%-%ds] [%%-%ds] %%-%ds (%%d note%%s)\n",
         ppager->max.task.id, ppager->max.task.username, ppager->max.task.status, ppager->max.task.priority, ppager->max.task.name
     );
     for_each_entry(ppager, pentry) {
@@ -67,7 +67,7 @@ static void print_tasks_with_date(PPager ppager)
     char **pentry;
     char format[64];
 
-    sprintf(format, "%%c %%%dd: (%%-%ds) [%%-%ds] [%%-%ds] %%-%ds %%-%ds  (%%d note%%s)\n",
+    sprintf(format, "%%c %%%dd: (%%-%ds) [%%-%ds] [%%-%ds] %%-%ds %%-%ds (%%d note%%s)\n",
         ppager->max.task.id, ppager->max.task.username, ppager->max.task.status, ppager->max.task.priority, ppager->max.task.date, ppager->max.task.name
     );
     for_each_entry(ppager, pentry) {
@@ -90,7 +90,7 @@ static void print_tasks_with_time(PPager ppager)
     char **pentry;
     char format[64];
 
-    sprintf(format, "%%c %%%dd: (%%-%ds)  %%-%ds  %%-%ds  %%%ds  %%-%ds  (%%d note%%s)\n",
+    sprintf(format, "%%c %%%dd: (%%-%ds) [%%-%ds] [%%-%ds] %%%ds %%-%ds (%%d note%%s)\n",
         ppager->max.task.id, ppager->max.task.username, ppager->max.task.status, ppager->max.task.priority, ppager->max.task.time, ppager->max.task.name
     );
     for_each_entry(ppager, pentry) {
@@ -113,7 +113,7 @@ static void print_tasks_with_date_and_time(PPager ppager)
     char **pentry;
     char format[64];
 
-    sprintf(format, "%%c %%%dd: (%%-%ds) [%%-%ds] [%%-%ds] %%-%ds %%%ds %%-%ds  (%%d note%%s)\n",
+    sprintf(format, "%%c %%%dd: (%%-%ds) [%%-%ds] [%%-%ds] %%-%ds %%%ds %%-%ds (%%d note%%s)\n",
         ppager->max.task.id, ppager->max.task.username, ppager->max.task.status, ppager->max.task.priority, ppager->max.task.date, ppager->max.task.time, ppager->max.task.name
     );
     for_each_entry(ppager, pentry) {
diff --git a/src/pit.c b/src/pit.c
index 73b5e21..fbadf92 100644
--- a/src/pit.c
+++ b/src/pit.c
@@ -61,7 +61,8 @@ int main(int argc, char *argv[]) {
     char *command[] = { "project", "task", "note", "log", "init", "info", "help", "version" };
     void (*handler[])(char *argv[]) = { pit_project, pit_task, pit_note, pit_log, pit_init, pit_info, pit_help, pit_version };
 
-    if (argc == 1) argv[1] = "help";
+    if (argc == 1) { argv[1] = "help"; argv[2] = NULL; }
+
     for(i = 0;  i < ARRAY_SIZE(command);  i++) {
         if (strstr(command[i], argv[1]) == command[i]) {
             if (candidate < 0) {
diff --git a/src/pit.h b/src/pit.h
index 3a23c77..f5d29d4 100644
--- a/src/pit.h
+++ b/src/pit.h
@@ -5,7 +5,8 @@
 
 typedef int bool;
 
-#include <time.h>
+#define __USE_XOPEN
+#include <time.h>       /* __USE_XOPEN needed for strptime() */
 #include "object.h"
 #include "table.h"
 #include "pager.h"
@@ -47,8 +48,9 @@ void pit_project(char *argv[]);
 void pit_task(char *argv[]);
 void pit_note(char *argv[]);
 void pit_log(char *argv[]);
-void pit_status(char *argv[]);
+void pit_info(char *argv[]);
 void pit_help(char *argv[]);
+void pit_version();
 void pit_db_load();
 void pit_db_save();
 void pit_db_initialize();
@@ -70,12 +72,14 @@ void  die(char *msg, ...);
 void  perish(char *prefix);
 char *str2str(char *str);
 char *mem2str(char *mem, int len);
-bool zero(char *mem, int len);
+bool  is_zero(char *mem, int len);
+void  printa(char *msg[]);
 char *current_user();
 char *home_dir(char *username, int len);
 char *expand_path(char *path, char *expanded);
 char *format_date(time_t date);
 char *format_time(time_t time);
+char *format_timestamp(time_t timestamp);
 char *inline_replace(char *this, char *old, char *new);
 
 #endif
diff --git a/src/project.c b/src/project.c
index 176dbe3..eeab621 100644
--- a/src/project.c
+++ b/src/project.c
@@ -46,6 +46,23 @@ static void project_list(POptions po)
     }
 }
 
+static void project_show(int id)
+{
+    PProject pp;
+
+    pit_db_load();
+    id = project_find_current(id, &pp);
+
+    if (pp) {
+        printf("* %d: (%s) %s (status: %s, %d task%s)\n", pp->id, pp->username, pp->name, pp->status, pp->number_of_tasks, (pp->number_of_tasks != 1 ? "s" : ""));
+        printf("The project was created on %s, last updated on %s\n", format_timestamp(pp->created_at), format_timestamp(pp->updated_at));
+        pit_table_mark(projects, pp->id);
+        pit_db_save();
+    } else {
+        die("could not find the project");
+    }
+}
+
 static void project_create(POptions po)
 {
     pit_db_load();
@@ -71,28 +88,6 @@ static void project_create(POptions po)
     }
 }
 
-static void project_show(int id)
-{
-    PProject pp;
-
-    pit_db_load();
-    pp = (PProject)pit_table_find(projects, id);
-    if (pp) {
-        printf("%d: %s (%s, %d task%s)\n",
-            pp->id, pp->name, pp->status, pp->number_of_tasks, (pp->number_of_tasks != 1 ? "s" : ""));
-        if (pp->number_of_tasks > 0) {
-            puts("Tasks:");
-            for_each_task(pt) {
-                printf("  %c %d: %s (%d notes)\n", (pt->id == tasks->current ? '*' : ' '), pt->id, pt->name, pt->number_of_notes);
-            }
-        }
-        pit_table_mark(projects, pp->id);
-        pit_db_save();
-    } else {
-        die("could not find the project");
-    }
-}
-
 static void project_update(int id, POptions po)
 {
     PProject pp;
@@ -246,7 +241,7 @@ void pit_project(char *argv[])
                 number = pit_arg_number(++arg, NULL);
                 if (!number) --arg;
                 project_parse_options(arg, &opt);
-                if (zero((char *)&opt.project, sizeof(opt.project))) {
+                if (is_zero((char *)&opt.project, sizeof(opt.project))) {
                     die("nothing to update");
                 } else {
                     project_update(number, &opt);
@@ -262,7 +257,7 @@ void pit_project(char *argv[])
                     project_show(number);
                 } else {
                     project_parse_options(--arg, &opt);
-                    if (zero((char *)&opt.project, sizeof(opt.project))) {
+                    if (is_zero((char *)&opt.project, sizeof(opt.project))) {
                         project_show(0); /* Show current project if any. */
                     } else {
                         project_list(&opt);
diff --git a/src/table.c b/src/table.c
index 5aa34ea..1f3bd0f 100644
--- a/src/table.c
+++ b/src/table.c
@@ -146,7 +146,7 @@ char *pit_table_delete(PTable pt, int id) {
 */
 char *pit_table_insert(PTable pt, char *record) {
     register char **pi;
-    register time_t now;
+    register time_t now = time(NULL);
 
     if (pt->number_of_records >= pt->number_of_slots) {
         pt = table_extend(pt);
@@ -170,7 +170,6 @@ char *pit_table_insert(PTable pt, char *record) {
     ** fields of type "time_t".
     */
     if (pt->flags & TABLE_HAS_CREATED_AT || pt->flags & TABLE_HAS_UPDATED_AT) {
-        now = time(NULL);
         *(time_t *)(*pi + pt->record_size - sizeof(time_t)) = now;
     }
     if (pt->flags & TABLE_HAS_CREATED_AT && pt->flags & TABLE_HAS_UPDATED_AT) {
diff --git a/src/task.c b/src/task.c
index 4a555c0..1fdd205 100644
--- a/src/task.c
+++ b/src/task.c
@@ -49,7 +49,22 @@ static void task_list(POptions po)
 
 static void task_show(int id)
 {
-    printf("task_show(%d)\n", id);
+    PTask pt;
+
+    pit_db_load();
+    id = task_find_current(id, &pt);
+
+    if (pt) {
+        printf("* %d: (%s) %s (project: %d, status: %s, priority: %s", pt->id, pt->username, pt->name, pt->project_id, pt->status, pt->priority);
+        if (pt->date) printf(", date: %s", format_date(pt->date));
+        if (pt->time) printf(", time: %s", format_time(pt->time));
+        printf(", %d note%s)\n", pt->number_of_notes, pt->number_of_notes == 1 ? "" : "s");
+        printf("The task was created on %s, last updated on %s\n", format_timestamp(pt->created_at), format_timestamp(pt->updated_at));
+        pit_table_mark(tasks, pt->id);
+        pit_db_save();
+    } else {
+        die("could not find the task");
+    }
 }
 
 static void task_create(POptions po)
@@ -72,8 +87,8 @@ static void task_create(POptions po)
         strncpy(t.priority, po->task.priority, sizeof(t.priority) - 1);
         strncpy(t.username, current_user(),    sizeof(t.username) - 1);
         t.project_id = pp->id;
-        t.date = po->task.date;
-        t.time = po->task.time;
+        t.date = max(0, po->task.date);
+        t.time = max(0, po->task.time);
 
         pt = (PTask)pit_table_insert(tasks, (char *)&t);
         pit_table_mark(tasks, pt->id);
@@ -93,8 +108,8 @@ static void task_update(int id, POptions po)
     if (po->task.name)     strncpy(pt->name,     po->task.name,     sizeof(pt->name) - 1);
     if (po->task.status)   strncpy(pt->status,   po->task.status,   sizeof(pt->status) - 1);
     if (po->task.priority) strncpy(pt->priority, po->task.priority, sizeof(pt->priority) - 1);
-    if (po->task.date) pt->date = po->task.date;
-    if (po->task.time) pt->time = po->task.time;
+    if (po->task.date) pt->date = max(0, po->task.date);
+    if (po->task.time) pt->time = max(0, po->task.time);
     pit_table_mark(tasks, pt->id);
 
     task_log_update(pt, po);
@@ -168,8 +183,8 @@ static void task_log_create(PTask pt, POptions po)
     char str[256];
 
     sprintf(str, "created task %d: %s (status: %s, priority: %s", pt->id, po->task.name, po->task.status, po->task.priority);
-    if (po->task.date) sprintf(str + strlen(str), ", date: %s", format_date(po->task.date));
-    if (po->task.time) sprintf(str + strlen(str), ", time: %s", format_time(po->task.time));
+    if (po->task.date > 0) sprintf(str + strlen(str), ", date: %s", format_date(po->task.date));
+    if (po->task.time > 0) sprintf(str + strlen(str), ", time: %s", format_time(po->task.time));
     strcat(str, ")");
     puts(str);
     pit_action(pt->id, "task", str);
@@ -196,10 +211,20 @@ static void task_log_update(PTask pt, POptions po)
         empty = FALSE;
     }
     if (po->task.date) {
-        sprintf(str + strlen(str), "%sdate: %s", (empty ? "" : ", "), format_date(po->task.date));
+        if (po->task.date < 0) {
+            sprintf(str + strlen(str), "%sdate: none", (empty ? "" : ", "));
+        } else {
+            sprintf(str + strlen(str), "%sdate: %s", (empty ? "" : ", "), format_date(po->task.date));
+        }
         empty = FALSE;
     }
-    if (po->task.time) sprintf(str + strlen(str), "%stime: %s", (empty ? "" : ", "), format_time(po->task.time));
+    if (po->task.time) {
+        if (po->task.time < 0) {
+            sprintf(str + strlen(str), "%stime: none", (empty ? "" : ", "));
+        } else {
+            sprintf(str + strlen(str), "%stime: %s", (empty ? "" : ", "), format_time(po->task.time));
+        }
+    }
     strcat(str, ")");
     puts(str);
     pit_action(pt->id, "task", str);
@@ -266,7 +291,7 @@ void pit_task(char *argv[])
                 number = pit_arg_number(++arg, NULL);
                 if (!number) --arg;
                 task_parse_options(arg, &opt);
-                if (!opt.task.name && !opt.task.status && !opt.task.priority && !opt.task.date && !opt.task.time) {
+                if (is_zero((char *)&opt.task, sizeof(opt.task))) {
                     die("nothing to update");
                 } else {
                     task_update(number, &opt);
@@ -282,7 +307,7 @@ void pit_task(char *argv[])
                     task_show(opt.task.id);
                 } else {
                     task_parse_options(--arg, &opt);
-                    if (!opt.task.name && !opt.task.status && !opt.task.priority && !opt.task.date && !opt.task.time) {
+                    if (is_zero((char *)&opt.task, sizeof(opt.task))) {
                         task_show(0); /* Show current task if any. */
                     } else {
                         task_list(&opt);
diff --git a/src/util.c b/src/util.c
index 32e5241..3d760e0 100644
--- a/src/util.c
+++ b/src/util.c
@@ -18,7 +18,7 @@ char *mem2str(char *mem, int len) {
     return str;
 }
 
-bool zero(char *mem, int len) {
+bool is_zero(char *mem, int len) {
     char *pch = mem;
 
     while(pch - mem < len) {
@@ -27,6 +27,10 @@ bool zero(char *mem, int len) {
     return TRUE;
 }
 
+void printa(char *msg[]) {
+    while(*msg) puts(*msg++);
+}
+
 char *current_user() {
     static char *username = NULL;
 
@@ -99,6 +103,16 @@ char *format_time(time_t time)
     return str;
 }
 
+char *format_timestamp(time_t timestamp)
+{
+    static char str[32];
+    struct tm *ptm = localtime(&timestamp);
+
+    strftime(str, sizeof(str), "%b %d, %Y at %H:%M", ptm);
+
+    return str;
+}
+
 char *inline_replace(char *this, char *old, char *new)
 {
     char *start = this;