Donation by PayPal in Japan is not legally permitted. I am glad if you will buy the following plugin by about $5 or gave me a present from my wishlist on Amazon.
Wishlist on Amazon
This plugin was made for checking when developing various plugins. It is not practical for many people. It is light plugin. Please use it if you like.
=== Admin Bar Watch ===
Requires WordPress Version: 3.0.1
Requires PHP Version: 5.3.0
Tested up to: 4.9
== Description ==
Display the clock and stopwatch in the admin bar.
== Screenshots ==
== Installation ==
1. Upload `admin-bar-watch` directory to the `/wp-content/plugins/` directory
2. Activate the plugin through the ‘Plugins’ menu in WordPress
== Downloads ==