Cygwin Time Zone

I finally got PHP to work but now I'm getting this warning message in phpinfo().

It is not safe to rely on the system's timezone settings. Please use the date.timezone setting, the TZ environment variable or the date_default_timezone_set() function. In case you used any of those methods and you are still getting this warning, you most likely misspelled the timezone identifier.

Update: Read

Cygwin Update Troubleshooting

Somehow updating Cygwin caused /etc/profile to disappear. All Cygwin commands are not founded when I logged into bash. I haven't noticed for weeks because somehow some commands were working via ssh. Copying profile file from /etc/defaults/etc/profile fixed the problem.