A 3:00 PM meeting in New York starts at 12:00 PM in Los Angeles. Not midnight. That single mix-up causes more missed calls than any daylight saving confusion ever will. EST (UTC−5) stays 3 hours ahead of PST (UTC−8) every day of the year. Summer swaps the labels to EDT and PDT, but the gap does not budge. Both coasts spring forward on the same Sunday in March and fall back on the same Sunday in November. The 3-hour offset is fixed.
The Math That Never Changes
Subtract three hours. That is the whole operation. 9:00 AM Eastern becomes 6:00 AM Pacific. 5:00 PM Eastern becomes 2:00 PM Pacific. Done.
The constant offset holds because Congress locked the two zones to the same DST calendar in the Energy Policy Act of 2005. Clocks jump from EST to EDT and from PST to PDT on the second Sunday of March. They drop back on the first Sunday of November. Both moves happen at 2:00 AM local time. The 3-hour gap survives both.
The only scenario that would break the pattern: one zone adopts permanent daylight saving while the other stays on the current schedule. The Sunshine Protection Act, which would put Eastern Time on permanent EDT (UTC−4), passed the US Senate in 2022 but stalled in the House. As of September 2026, no change has taken effect.
Convert Any Eastern Time to Pacific Time
Grab the Eastern hour. Count back three. That is your Pacific time. A few edge cases trip people up.
Between 12:00 AM and 2:59 AM Eastern, the Pacific clock still reads the previous evening. 1:00 AM in New York is 10:00 PM the night before in California. The date shifts backward.
The midnight trap: 12:00 AM is midnight, not noon. A 3:00 PM Eastern call lands at 12:00 PM Pacific (noon). Write "12:00 PM," not "12:00 AM," or you will schedule a call for the middle of the night.
EST to PST Conversion Table
| Eastern Time (EST/EDT) | Pacific Time (PST/PDT) |
|---|---|
| 6:00 AM | 3:00 AM |
| 8:00 AM | 5:00 AM |
| 9:00 AM | 6:00 AM |
| 10:00 AM | 7:00 AM |
| 12:00 PM | 9:00 AM |
| 1:00 PM | 10:00 AM |
| 3:00 PM | 12:00 PM |
| 5:00 PM | 2:00 PM |
| 7:00 PM | 4:00 PM |
| 9:00 PM | 6:00 PM |
| 11:00 PM | 8:00 PM |
EDT to PDT: Same 3 Hours, Different Labels
Summer changes the abbreviations, not the interval. EDT sits at UTC−4. PDT sits at UTC−7. Subtract and you still get three hours.
On 15 January 2026, Los Angeles runs 3 hours behind New York. On 15 July 2026, Los Angeles runs 3 hours behind New York. The absolute clock times shift by an hour in both cities, so the relative gap stays flat.
You do not need a summer rule. Subtract three hours. It works in January, July, and every month between.
The Narrow Window Between Coasts
A 9:00 AM to 5:00 PM Eastern workday maps to 6:00 AM to 2:00 PM Pacific. The first hour of the Eastern morning lands before most West Coast desks are occupied. The last three hours of the Eastern afternoon happen after many Californians have left.
Real-time overlap runs roughly 12:00 PM to 2:00 PM Eastern, or 9:00 AM to 11:00 AM Pacific. Schedule outside that band and one side bends their morning or evening.
When to Call California from New York
Aim for these windows. Skip the rest.
- Before 10:00 AM Eastern (7:00 AM Pacific): Too early. Let the West Coast get coffee first.
- 12:00 PM to 2:00 PM Eastern (9:00 AM to 11:00 AM Pacific): The sweet spot. Both coasts are at full speed.
- After 2:00 PM Eastern (11:00 AM Pacific): The Pacific side drifts toward lunch. After 5:00 PM Eastern (2:00 PM Pacific), the window closes.
Quick checklist:
- Subtract 3 hours. Always.
- DST changes nothing. The gap holds.
- Best meeting slot: 12:00 PM to 2:00 PM Eastern.
- Do not dial before 10:00 AM Eastern or after 5:00 PM Eastern.
- 12:00 PM is noon. 12:00 AM is midnight. Label carefully.