Create a Date Time Stamp in Sublime Text 2 on a Mac

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") } )

Default (OSX).sublime-keymap

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