EST to San Mateo, CA, USA Time Converter
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Quick answers
Selected conversion
11:30 am11:30 EST (UTC-5), Nov 1, 2026 = 8:30 am08:30 PST (UTC-8), Nov 1, 2026
EST is 3 hours ahead of San Mateo.
How the time difference changes
For most of the year, EDT is 3 hours ahead of San Mateo, CA, USA. From Nov 1, 2026 to Mar 14, 2027, EST is 3 hours ahead of San Mateo, CA, USA. Briefly around clock changes, EDT is 4 hours ahead of San Mateo, CA, USA or EST is 2 hours ahead of San Mateo, CA, USA.
For most of the year, working hours of 9:00 am to 6:00 pm in EDT correspond to 6:00 am to 3:00 pm in San Mateo, CA, USA. At other times of the year, working hours of 9:00 am to 6:00 pm in EST correspond to 6:00 am to 3:00 pm in San Mateo, CA, USA.For most of the year, working hours of 09:00 to 18:00 in EDT correspond to 06:00 to 15:00 in San Mateo, CA, USA. At other times of the year, working hours of 09:00 to 18:00 in EST correspond to 06:00 to 15:00 in San Mateo, CA, USA.
Compare EST time with San Mateo time, including current local time, UTC offsets, time difference, daylight saving changes, working hours, and shareable meeting times.
Time Difference
Eastern Standard Time is 3 hours ahead of PST (Pacific Standard Time).
11:30 am11:30 in EST is 8:30 am08:30 in San Mateo, CA, USA
EST to San Mateo call time
Best time for a conference call or a meeting is between 12pm-6pm12:00-18:00 in EST which corresponds to 9am-3pm09:00-15:00 in San Mateo
11:30 am11:30 Eastern Standard Time (EST). Offset UTC -5:00 hours
8:30 am08:30 PST (Pacific Standard Time) (San Mateo, CA, USA). Offset UTC -8:00 hours
11:30 am11:30 EST / 8:30 am08:30 San Mateo, CA, USA
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| EST | San Mateo, CA, USA |
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| 9:00pm previous day PDT UTC-7 | |
| 10:00pm previous day PDT UTC-7 | |
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| 21:00 previous day PDT UTC-7 | |
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Eastern Standard Time
Offset: EST is 5 hours behind Greenwich Mean Time (GMT).
Countries using this time zone: Bahamas, Canada, Cayman Islands, Haiti, Jamaica, Mexico, Panama, Turks and Caicos Islands, United States
Principal Cities: The largest city in the EST time zone is New York City in the United States, with about 8.804 million people. Other major cities in this time zone include Toronto, Montréal, Philadelphia, Port-au-Prince.
French: HNE - Heure Normale de l'Est
Spanish: ET - Tiempo del Este, ET - Zona Sureste
Today all shaded areas are on EST.
Daylight Saving: This is a standard time zone. During summer, some places set clocks forward one hour for daylight saving time and observe Eastern Daylight Time (EDT).
Start: Eastern Standard Time (EST) started on Sunday, November 1, 2026 at 2:00 am02:00 local time and clocks were set one hour back to Sunday, November 1, 2026, 1:00 am01:00. Standard time starts annually on the first Sunday of November.
End: Eastern Standard Time (EST) ends on Sunday, March 14, 2027 at 2:00 am02:00 local time and clocks are set one hour forward to Sunday, March 14, 2027, 3:00 am03:00 local daylight time instead. Standard time ends annually on the second Sunday of March.
See USA daylight saving time and upcoming clock changes worldwide.
EST representations, usage and related time zones
- -05 - basic short
- -0500 - basic
- -05:00 - extended
- -0500 - sign character (-) followed by a four digit time providing hours (05) and minutes (00) of the offset. Indicates an offset of five hours to the west of the zero meridian.
- Romeo - Military abbreviation for EST
- R - short form of 'Romeo'
- America/Atikokan
- America/Cancun
- America/Cayman
- America/Coral_Harbour
- America/Detroit
- America/Fort_Wayne
- America/Grand_Turk
- America/Indiana/Indianapolis
- America/Indiana/Marengo
- America/Indiana/Petersburg
- America/Indiana/Vevay
- America/Indiana/Vincennes
- America/Indiana/Winamac
- America/Indianapolis
- America/Iqaluit
- America/Jamaica
- America/Kentucky/Louisville
- America/Kentucky/Monticello
- America/Louisville
- America/Montreal
- America/Nassau
- America/New_York
- America/Nipigon
- America/Panama
- America/Pangnirtung
- America/Port-au-Prince
- America/Thunder_Bay
- America/Toronto
- Canada/Eastern
- EST
- EST5EDT
- Jamaica
- US/East-Indiana
- US/Eastern
- US/Michigan
- CDT - Central Daylight Time
- EST - Eastern Standard Time
- ET - Eastern Time
- COT - Colombia Time
- CST - Cuba Standard Time
- EASST - Easter Island Summer Time
- ECT - Ecuador Time
- PET - Peru Time
- R - Romeo Time Zone
San Mateo Time Zone and Facts
Time Zone
PDT – Pacific Daylight Time, UTC-7 (daylight saving time)