Updating current time…
California, USAPDT
UTC−7
12am
3am
6am
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12pm
3pm
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9pm
Walnut Creek's clocks go back 1 hour on Sun, Nov 1 · PDT → PST
GMT
UTC+0
7h ahead
12am
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6am
9am
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3pm
6pm
9pm

Quick answers

Selected conversion

5:30 am05:30 PDT (UTC-7), Oct 25, 2026 = 12:30 pm12:30 GMT (UTC+0), Oct 25, 2026

Walnut Creek is 7 hours behind GMT.

How the time difference changes

For most of the year, Walnut Creek is 7 hours behind GMT. From Nov 1, 2026 to Mar 14, 2027, Walnut Creek is 8 hours behind GMT.

For most of the year, working hours of 9:00 am to 6:00 pm in Walnut Creek correspond to 4:00 pm to 1:00 am (next day) in GMT. At other times of the year, working hours of 9:00 am to 6:00 pm in Walnut Creek correspond to 5:00 pm to 2:00 am (next day) in GMT.For most of the year, working hours of 09:00 to 18:00 in Walnut Creek correspond to 16:00 to 01:00 (next day) in GMT. At other times of the year, working hours of 09:00 to 18:00 in Walnut Creek correspond to 17:00 to 02:00 (next day) in GMT.

Compare Walnut Creek time with GMT time, including current local time, UTC offsets, time difference, daylight saving changes, working hours, and shareable meeting times.

Time Difference

PDT (Pacific Daylight Time) is 7 hours behind Greenwich Mean Time.
5:30 am05:30 in Walnut Creek, CA, USA is 12:30 pm12:30 in GMT

Walnut Creek to GMT call time
Best time for a conference call or a meeting is between 9am-11am09:00-11:00 in Walnut Creek which corresponds to 4pm-6pm16:00-18:00 in GMT

5:30 am05:30 PDT (Pacific Daylight Time) (Walnut Creek, CA, USA). Offset UTC -7:00 hours
12:30 pm12:30 Greenwich Mean Time (GMT). Offset UTC 0:00 hours

5:30 am05:30 Walnut Creek, CA, USA / 12:30 pm12:30 GMT

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.

Hourly time comparison
Walnut Creek, CA, USAGMT
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Walnut Creek Time Zone and Facts

Time Zone

Abbreviation / Offset
PDT – Pacific Daylight Time, UTC-7 (now, daylight saving time)
PST – Pacific Standard Time, UTC-8 (standard time)
Daylight Saving Time Ends
123456789101112Sunday, November 1, 2026 at 2:00 amSunday, November 1, 2026 at 02:00: clocks go back 1 hour to 1:00 am01:00 (PST). DST ends on the 1st Sunday of November each year. Also called Fall Back or Winter Time.
Daylight Saving Time Starts
123456789101112Sunday, March 14, 2027 at 2:00 amSunday, March 14, 2027 at 02:00: clocks go forward 1 hour to 3:00 am03:00 (PDT). DST starts on the 2nd Sunday of March each year. Also called Spring Forward or Summer Time.

Walnut Creek Facts

Country
USA
State
California
Alternative Names
Uolnt Krijk, Uolnat-Krik, Volnat Krik, Volnat-Krik, Walnut Creek, he tao xi, u~orunattokuriku, valanata krika, walnat kryk kalyfrnya, walnwt kryk, wolneoskeulig, Волнат Крик, Волнат-Крік, Уолнат-Крик, Уолнът Крийк, والنات کریک، کالیفرنیا, والنوت كريك, वालनट क्रीक, ウォールナットクリーク, 核桃溪, 월넛크릭
Population
68,910
Currency
Dollar (USD)
Geographic Coordinates
37° 54' N Latitude / 122° 03' W Longitude
International Dialing Code
+1

Greenwich Mean Time

Offset: GMT is the same as Greenwich Mean Time (GMT).

Countries using this time zone: Antarctica, Burkina Faso, Gambia, Ghana, Greenland, Guernsey, Guinea, Guinea-Bissau, Iceland, Ireland, Isle of Man, Ivory Coast, Jersey, Liberia, Mali, Mauritania, Morocco, Saint Helena, São Tomé and Príncipe, Senegal, Sierra Leone, Togo, United Kingdom, Western Sahara

Principal Cities: The largest city in the GMT time zone is London in the United Kingdom, with about 8.962 million people. Other major cities in this time zone include Abidjan, Bamako, Casablanca, Dakar.

Greenwich Mean Time (GMT) originally referred to the mean solar time at the Royal Observatory in Greenwich, London. It is now often used to refer to Coordinated Universal Time (UTC) when this is viewed as a time zone, and in casual use the two are the same. In the military, GMT is known as Zulu time. Greenwich Mean Time was the same as Universal Time (UT), a standard astronomical concept used in many technical fields, until the introduction of UTC in 1972.

Map of the areas on Greenwich Mean Time (GMT)
GMT all year GMT part of the year

Today all shaded areas are on GMT.

GMT representations, usage and related time zones

W3C/ISO-8601: International standard covering representation and exchange of dates and time-related data
  • Z - is the zone designator for the zero UTC/GMT offset, also known as 'Zulu' time
  • +00 - basic short
  • +0000 - basic
  • +00:00 - extended
Email/RFC-2822: Internet Message Format Date Standard, typically used for timestamps in email headers
  • +0000 - sign character (+) followed by a four digit time providing hours (00) and minutes (00) of the offset. Indicates the zero UTC/GMT offset.
Military/NATO: Used by the U.S. military, Chinese military and others
  • Zulu - Military abbreviation for GMT
  • Z - short form of 'Zulu'
IANA/Olson: Reflects GMT time zone boundaries defined by political bodies, primarily intended for use with computer programs and operating systems
  • Africa/Abidjan
  • Africa/Accra
  • Africa/Bamako
  • Africa/Banjul
  • Africa/Bissau
  • Africa/Conakry
  • Africa/Dakar
  • Africa/Freetown
  • Africa/Lome
  • Africa/Monrovia
  • Africa/Nouakchott
  • Africa/Ouagadougou
  • Africa/Sao_Tome
  • Africa/Timbuktu
  • America/Danmarkshavn
  • Atlantic/Reykjavik
  • Atlantic/St_Helena
  • Eire
  • Etc/GMT
  • Etc/GMT+0
  • Etc/GMT-0
  • Etc/GMT0
  • Etc/Greenwich
  • Europe/Belfast
  • Europe/Dublin
  • Europe/Guernsey
  • Europe/Isle_of_Man
  • Europe/Jersey
  • Europe/London
  • GB
  • GB-Eire
  • GMT
  • GMT+0
  • GMT-0
  • GMT0
  • Greenwich
  • Iceland
Time zones with the GMT +0 offset:
  • EGST - Eastern Greenland Summer Time
  • GMT - Greenwich Mean Time
  • WET - Western European Time
  • AZOST - Azores Summer Time
  • UTC - Coordinated Universal Time
  • WT - Western Sahara Standard Time
  • Z - Zulu Time Zone