What is 4 AM GMT in PST?

Does the answer change during the year?

Yes. Greenwich Mean Time and Pacific Time don't change their clocks on the same dates, so over the next 12 months:

• October 14 to October 31: 4 AM GMT = 9 PM PST the previous day
• November 1 to March 13: 4 AM GMT = 8 PM PST the previous day
• March 14 to October 13: 4 AM GMT = 9 PM PST the previous day

Pacific Time switches between PST and PDT for daylight saving time; people often say PST all year.

Questions

4 AM GMT in other time zones

Time zone	Time
Eastern Time EST/EDT	12 AM
Central Time CST/CDT	11 PM (Tue)
Mountain Time MST/MDT	10 PM (Tue)
Pacific Time PST/PDT	9 PM (Tue)
Alaska Time AKST/AKDT	8 PM (Tue)
Hawaii Time HST	6 PM (Tue)
Coordinated Universal Time UTC	4 AM
Central European Time CET/CEST	6 AM
Eastern European Time EET/EEST	7 AM
India Standard Time IST	9:30 AM
Japan Standard Time JST	1 PM
Australian Eastern Time AEST/AEDT	3 PM
Singapore Time SGT	12 PM
Philippine Time PHT	12 PM
Moscow Time MSK	7 AM
Gulf Standard Time GST	8 AM

Based on the clocks on Wednesday, October 14, 2026.