Zone & HourPST to EST Time Converter
EST is 3 hours ahead of PST.
PST: Pacific Standard Time, UTC−08:00.
EST: Eastern Standard Time, UTC−05:00.
For a city that changes clocks, use the date-aware city converter.
Check the abbreviation before converting
PST can also be used for Philippine Standard Time (UTC+08:00). Here it exclusively means Pacific Standard Time.
Convert a time
9:00 AM PST = 12:00 PM EST (same day)
24-hour PST to EST conversion table
These are fixed-offset examples. They apply whenever the two abbreviations have the exact meanings stated above.
| PST · UTC−08:00 | EST · UTC−05:00 | Day |
|---|---|---|
| 12:00 AM | 3:00 AM | Same day |
| 1:00 AM | 4:00 AM | Same day |
| 2:00 AM | 5:00 AM | Same day |
| 3:00 AM | 6:00 AM | Same day |
| 4:00 AM | 7:00 AM | Same day |
| 5:00 AM | 8:00 AM | Same day |
| 6:00 AM | 9:00 AM | Same day |
| 7:00 AM | 10:00 AM | Same day |
| 8:00 AM | 11:00 AM | Same day |
| 9:00 AM | 12:00 PM | Same day |
| 10:00 AM | 1:00 PM | Same day |
| 11:00 AM | 2:00 PM | Same day |
| 12:00 PM | 3:00 PM | Same day |
| 1:00 PM | 4:00 PM | Same day |
| 2:00 PM | 5:00 PM | Same day |
| 3:00 PM | 6:00 PM | Same day |
| 4:00 PM | 7:00 PM | Same day |
| 5:00 PM | 8:00 PM | Same day |
| 6:00 PM | 9:00 PM | Same day |
| 7:00 PM | 10:00 PM | Same day |
| 8:00 PM | 11:00 PM | Same day |
| 9:00 PM | 12:00 AM | Next day |
| 10:00 PM | 1:00 AM | Next day |
| 11:00 PM | 2:00 AM | Next day |
What PST and EST mean
PST: Pacific Standard Time
This page uses North American PST, UTC−08:00. Los Angeles changes to PDT (UTC−07:00) during daylight saving. A representative location is Los Angeles in winter, whose IANA identifier is America/Los_Angeles.
EST: Eastern Standard Time
EST means UTC−05:00. New York uses EDT (UTC−04:00) during daylight saving; choose the city converter for a date-aware result. A representative location is New York in winter, whose IANA identifier is America/New_York.
Common conversion examples
- 6:00 AM PST becomes 9:00 AM EST.
- 9:00 AM PST becomes 12:00 PM EST.
- 12:00 PM PST becomes 3:00 PM EST.
- 6:00 PM PST becomes 9:00 PM EST.
- 9:00 PM PST becomes 12:00 AM EST on the next day.
Frequently asked questions
Does this table change for daylight saving?
No. The offsets attached to these abbreviations stay fixed. A city may switch to a differently named abbreviation. PST is not a daylight-saving designation in the interpretation used here.
Should I put an abbreviation in a meeting invitation?
Use an IANA city time zone and a full date. Abbreviations are useful shorthand when everyone agrees on the meaning, but they do not carry the complete rules that a calendar needs for recurring events.
Why can the day change?
The difference is 180 minutes. Adding or subtracting that amount can move the destination time before midnight or beyond the end of the source day. The last column makes that change explicit.