Tick

Start tick

	Java	Javascript	.net
Tick = 0 (GMT+0)	1970/01/01 00:00:00	1970/01/01 00:00:00	1601/01/01 00:00:00
sec/tick	1000	1000	10000000

Convertion

tick=0\to tick	Java	Javascript	.net
Java	x	0	621356256000000000
Javascript	0	x	621356256000000000
.net	-11644473600000	-11644473600000	x

// Convert c# date to javascript
var ticks = (DateTime.Now.Ticks - 621356256000000000) / 10000;

// Convert javascript date to c#
var ticks = (((new Date()).getTime() * 10000) + 621355968000000000);