NTP

I’m looking for a address for a Default NTP Server for my D-LINK router any ideas where to get this.

My time on windows 98se is good but on the router side it resets itself each time I unplug the power from it. I only do that because to turn it off when I’m done using the computer.

I always have to set the time and date again each time I do that. And on the time settings it says Default NTP Server (optional) so I’m looking for that (optional) setting.