1 AM PST to EST
1:00 AM PST is 4:00 AM EST.
1 AM PST in other time zones
Quarter hours: 1 AM, 1:15, 1:30 and 1:45 PST
- 1:00 AM PST = 4:00 AM EST
- 1:15 AM PST = 4:15 AM EST
- 1:30 AM PST = 4:30 AM EST
- 1:45 AM PST = 4:45 AM EST
1 AM PST to EST FAQ
What is 1 AM PST in EST?
1:00 AM PST is 4:00 AM EST.
Is 1 AM PST the same day in EST?
Yes. 1:00 AM PST and 4:00 AM EST fall on the same calendar day.
What is 1:30 AM PST in EST?
1:30 AM PST = 4:30 AM EST.
Is 1 AM PT the same as 1 AM PST?
PT (Pacific Time) is the year-round name for these clocks, so 1 AM PT means 1 AM PST on today's date. 1:00 AM PST is 4:00 AM EST.
Related conversions
All PST to EST times
12 AM PST to EST1 AM PST to EST2 AM PST to EST3 AM PST to EST4 AM PST to EST5 AM PST to EST6 AM PST to EST7 AM PST to EST8 AM PST to EST9 AM PST to EST10 AM PST to EST11 AM PST to EST12 PM PST to EST1 PM PST to EST2 PM PST to EST3 PM PST to EST4 PM PST to EST5 PM PST to EST6 PM PST to EST7 PM PST to EST8 PM PST to EST9 PM PST to EST10 PM PST to EST11 PM PST to EST
Convert EST to PST
Convert PST to other time zones
Convert other time zones to EST
Learn more
Updated 6 November 2026. Time zone data: IANA tz database.