What are the peak times/peak days for online poker???

[Invictus1618]

I haven't been playing poker online for that long and everytime I log on there seems to be either a lot of players or not many at all. I've seen some people talk about "Peak" times for play and was was wondering what time that was. Also, does it vary depending on what day of the week? What about differnt cites (I usually play at Pacific BTW)? Any observations would be helpful, thanx.