EST to PST Converter
Convert Eastern and Pacific clock times with fixed standard time or automatic US daylight-saving changes.
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EST to PST Converter
Convert Eastern and Pacific times, with optional DST awareness.
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Free, instant and processed in your browser
Calculation Result
CalculatedHow to use the EST to PST Converter
- Choose a source date and time.
- Select Eastern → Pacific or Pacific → Eastern.
- Choose automatic US daylight-saving rules or fixed standard-time conversion, then calculate.
How does this calculator work?
Automatic mode uses America/New_York and America/Los_Angeles IANA time zones to apply historical and seasonal US DST rules. On a spring-forward gap, a nonexistent source time is rejected. On an autumn fall-back, when the local time occurs twice, the earlier occurrence is used and identified. Fixed standard-time mode always uses EST (UTC−5) and PST (UTC−8) without daylight-saving adjustments.
Calculation example
January 15, 2026 at 3:30 PM EST is 12:30 PM PST. In July, 3:30 PM EDT is 12:30 PM PDT under automatic mode.
Frequently asked questions
What is the difference between EST and EDT?
EST is UTC−5 and EDT is UTC−4. Eastern Time switches between them seasonally.
Is PST the same as PDT?
No. PST is UTC−8; PDT is UTC−7 during daylight-saving time.
How far apart are Eastern and Pacific times?
They are generally three hours apart, with Pacific behind Eastern, but exact abbreviations depend on the date and the selected conversion mode.
What happens at a missing spring-forward time?
Automatic mode displays an error for a source clock time that never occurred.
What if the fall-back hour occurs twice?
Automatic mode chooses the earlier occurrence and explains the ambiguity.