EST to Great Bookham Time Converter
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Quick answers
Selected conversion
8:00 am08:00 EDT (UTC-4), Oct 12, 2026 = 1:00 pm13:00 BST (UTC+1), Oct 12, 2026
EDT is 5 hours behind Great Bookham.
How the time difference changes
For most of the year, EDT is 5 hours behind Great Bookham. From Oct 25 to Nov 1, 2026, and from Mar 14 to Mar 28, 2027, EDT is 4 hours behind Great Bookham. From Nov 1, 2026 to Mar 14, 2027, EST is 5 hours behind Great Bookham.
For most of the year, working hours of 9:00 am to 5:00 pm in EDT correspond to 2:00 pm to 10:00 pm in Great Bookham. At other times of the year, working hours of 9:00 am to 5:00 pm in EST correspond to 2:00 pm to 10:00 pm in Great Bookham or working hours of 9:00 am to 5:00 pm in EDT correspond to 1:00 pm to 9:00 pm in Great Bookham.For most of the year, working hours of 09:00 to 17:00 in EDT correspond to 14:00 to 22:00 in Great Bookham. At other times of the year, working hours of 09:00 to 17:00 in EST correspond to 14:00 to 22:00 in Great Bookham or working hours of 09:00 to 17:00 in EDT correspond to 13:00 to 21:00 in Great Bookham.
Compare EST time with Great Bookham time, including current local time, UTC offsets, time difference, daylight saving changes, working hours, and shareable meeting times.
Time Difference
Eastern Daylight Time is 5 hours behind BST (British Summer Time).
8:00 am08:00 in EDT is 1:00 pm13:00 in Great Bookham, United Kingdom
EDT to Great Bookham call time
Best time for a conference call or a meeting is between 9am-12pm09:00-12:00 in EDT which corresponds to 2pm-5pm14:00-17:00 in Great Bookham
8:00 am08:00 Eastern Daylight Time (EDT). Offset UTC -4:00 hours
1:00 pm13:00 BST (British Summer Time) (Great Bookham, United Kingdom). Offset UTC +1:00 hour
8:00 am08:00 EDT / 1:00 pm13:00 Great Bookham, United Kingdom
Choose an hour to update the converter. Day labels such as “next day” or “+1” are relative to the selected date in the first column. Use Up and Down arrow keys, Home or End to move between hours, then Enter or Space to select.
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Eastern Standard Time
Offset: EST is 5 hours behind Greenwich Mean Time (GMT).
Countries using this time zone: Bahamas, Canada, Haiti, Jamaica, Cayman Islands, Mexico, Panama, Turks & Caicos Is, 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 the lighter areas are on UTC−4 (EDT).
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).
End: Eastern Standard Time (EST) ended on Sunday, March 8, 2026 at 2:00 am02:00 local time and clocks were set one hour forward to Sunday, March 8, 2026, 3:00 am03:00 local daylight time instead. Standard time ends annually on the second Sunday of March.
Start: Eastern Standard Time (EST) starts on Sunday, November 1, 2026 at 2:00 am02:00 local time and clocks are set one hour back to Sunday, November 1, 2026, 1:00 am01:00. Standard time starts annually on the first Sunday of November.
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
Great Bookham Time Zone and Facts
Time Zone
GMT – Greenwich Mean Time, UTC+0 (standard time)