A simple offline timer runs as a service.
 
The popup notification with sound effect(optional) always stays on top of other non-fullscreen windows. So you will never miss it.

Translate this file to your language: http://extensiondl.maxthon.cn/skinpack/36293/1392685713/locale/en.ini

Restart Maxthon after extension updated!

1.4.0
+ New icons...Maybe a little more lovely.
+ Time error check. Request a very tiny file(1 Byte) from googlecode.com to check accuracy of local time. (No private data will be sent. Up to one time every 24 hours). Of course you can turn this option off.
+ Add a countdown display on the panel. And you can totally turn off dynamic icons and badge from now on.
+ Open a URL when time is up.
+ Fixed some bugs

1.3.0
+ No 'Maximum call stack size exceeded' problem now.
+ Self monitoring and reporting: notify user of service error, crash and unexpected close.
+ Sound effect loop playback(optional)

1.2.0~1.2.8
+ Tabs UI
+ Notification at specified time (eg 2013-10-01 08:00)
+ Customize notification sound effect
+ Some improvements
+ Remove SAVE button
+ Add a clock on the panel

1.1.0~1.1.6
+ Notification at specified time everyday
+ More accurate timing
+ Some improvements
+ Optimized performance
+ Sound effect repeats 2 times(about 1 second)
+ Reset options button. If extension does not function properly, try this button to reset all options.
(You can post your all options here. I will find out where bed bugs are.)