Global Poker is generally busy at all times. However, if you like to play the more obscure games—like Sit & Go Omaha for example—you’ll want to join in during peak times.
The peak time to play at online poker sites is generally between 6:00 PM and 12:00 AM. But keep timezones in mind. Because the vast majority of Texas is in Central Time, peak hours are between 5:00 PM and 2:00 AM to account for the east and west coasts.