World Clocks

Provides a widget that shows the current date and time given a specified timezone and format.

This plugin shows the server local current date time & timezone in the upper right of your admin screen on every page.

Takes care of publishing posts that missed their schedule, for CET/CEST time zones only.

Provides a [localize_time] shortcode, which displays times in the user's local timezone.

Allows the site-level timezone to be changed at the user profile level

Users can set their current location via the WordPress dashboard. A widget displays the location and the corresponding time (zone).

Using ShareWhere plugin you can share your location in post/page using google map.

Using BP Memories you can see your memory regarding BuddyPress such as activity.