khill07

WordPress displays all dates and times based on a site-level timezone setting configured in the admin back-end. The problem is when you user base handles people from all over the world date and times really don’t mean much any more.
This plugin enables the user to select their own timezone and it handles the date and time conversion in both the front-end and admin section of the site.
The plan is to start out simple and improve from there. Currently, due to some complexities with time conversions, this plugin requires your site-level timezone to be set to UTC+0, UTC or some other timezone with no UTC offset. You can find this setting in the admin section under Settings -> General.
Also, please note that if you are changing your site-level timezone, this will not update any data in the database. WordPress simply assumes all date and times entered, where entered in UTC. This will unfortunately shifted all date and times by the number of hours your old timezone was offset from UTC. But please keep in mind that storing date/times in UTC is a good habit and all new date and times entered correct with not shift.

WP User Level Timezone

its work for me

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

nerghum

Analog clock plugin is very usefull plugin to show simple analog clock in widget area like sidebar or footer. Easy to use and it find user local timezone and preview local time. No js user for the clock. Only html css and php seo friendly code.
There is a 3rd Party service name “Timezone API”. It’s use for convert ip address to user local time zone, time, date etc. It just take the ip address and return time and date value that use for display the time. 
Larn more about Timezone API hare “http://timezoneapi.io” 
Tarms and condition for Timezone API “http://timezoneapi.io/terms”

Analog Clock display Widget

Works perfectly..
Good job brother. Thumps up

Excellent...

This is a analog clock plugin. It's use for preview analog clock in widget area.

WP User Level Timezone vs Analog Clock display Widget