Can i add date time for sublime snippet?

Nachocab, that was a GREAT answer - and helped me VERY much. I created a slightly different version for myself

~/Library/Application Support/Sublime Text 2/Packages/User/datetimestamp.py:

import datetime, getpass
import sublime, sublime_plugin

class AddDateTimeStampCommand(sublime_plugin.TextCommand):
    def run(self, edit):
        self.view.run_command("insert_snippet", { "contents": "%s" %  datetime.datetime.now().strftime("%Y-%m-%d %H:%M:%S") } )

class AddDateStampCommand(sublime_plugin.TextCommand):
    def run(self, edit):
        self.view.run_command("insert_snippet", { "contents": "%s" %  datetime.datetime.now().strftime("%Y-%m-%d") } )

class AddTimeStampCommand(sublime_plugin.TextCommand):
    def run(self, edit):
        self.view.run_command("insert_snippet", { "contents": "%s" %  datetime.datetime.now().strftime("%H:%M:%S") } )

Preferences > Key Bindings - User:

{"keys": ["super+alt+ctrl+d"], "command": "add_date_time_stamp" },
{"keys": ["super+alt+d"], "command": "add_date_stamp" },
{"keys": ["super+alt+t"], "command": "add_time_stamp" }

I wouldn't have been able to do this without your help! I scoured google for about an hour now and finally was graced by your answer! Thank's so much!

Tools > New Plugin

Paste this:

import datetime, getpass
import sublime, sublime_plugin
class AddDateCommand(sublime_plugin.TextCommand):
    def run(self, edit):
        self.view.run_command("insert_snippet", { "contents": "%s" %  datetime.date.today().strftime("%d %B %Y (%A)") } )

class AddTimeCommand(sublime_plugin.TextCommand):
    def run(self, edit):
        self.view.run_command("insert_snippet", { "contents": "%s" %  datetime.datetime.now().strftime("%H:%M") } )

Save it as ~/Library/Application Support/Sublime Text 2/Packages/User/add_date.py

Then, in Preferences > Key Bindings - User , add:

{"keys": ["ctrl+shift+,"], "command": "add_date" },
{"keys": ["ctrl+shift+."], "command": "add_time" },

You can customize the argument passed to strftime to your liking.