Windsor to GMT Time Converter
No shared working hoursSat, Oct 17
The United Kingdom is on summer time: BST (UTC+1) until Sun, Oct 25.
Iceland and Ghana stay on GMT (UTC+0).
Start by searching for a time zone, city, or town.
Add one or more places to compare local times, adjust the date, and share the result.
Quick answers
Selected conversion
1:00 am01:00 NZDT (UTC+13), Oct 17, 2026 = 12:00 pm12:00 GMT (UTC+0), Oct 16, 2026
Windsor is 13 hours ahead of GMT.
How the time difference changes
Depending on seasonal clock changes, Windsor is 12 hours ahead of GMT or Windsor is 13 hours ahead of GMT.
Depending on seasonal clock changes, working hours of 9:00 am to 6:00 pm in Windsor correspond to 9:00 pm (previous day) to 6:00 am in GMT or working hours of 9:00 am to 6:00 pm in Windsor correspond to 8:00 pm (previous day) to 5:00 am in GMT.Depending on seasonal clock changes, working hours of 09:00 to 18:00 in Windsor correspond to 21:00 (previous day) to 06:00 in GMT or working hours of 09:00 to 18:00 in Windsor correspond to 20:00 (previous day) to 05:00 in GMT.
Compare Windsor time with GMT time, including current local time, UTC offsets, time difference, daylight saving changes, working hours, and shareable meeting times.
Time Difference
NZDT (New Zealand Daylight Time) is 13 hours ahead of Greenwich Mean Time.
1:00 am01:00 in Windsor, New Zealand is 12:00 pm12:00 in GMT
Windsor to GMT call time
Best time for a conference call or a meeting is between 7:30am-8:30am07:30-08:30 in Windsor which corresponds to 6:30pm-7:30pm18:30-19:30 in GMT (previous day). Their 9am–6pm09:00–18:00 working hours do not overlap; this is a suggested compromise.
1:00 am01:00 NZDT (New Zealand Daylight Time) (Windsor, New Zealand). Offset UTC +13:00 hours
12:00 pm12:00 Greenwich Mean Time (GMT). Offset UTC 0:00 hours
1:00 am01:00 Windsor, New Zealand / 12:00 pm12:00 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.
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Windsor Time Zone and Facts
Time Zone
NZST – New Zealand Standard Time, UTC+12 (standard time)
Windsor Facts
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.
Today the lighter areas are on UTC+1 (British Summer Time, Irish Standard Time).
GMT representations, usage and related time zones
- Z - is the zone designator for the zero UTC/GMT offset, also known as 'Zulu' time
- +00 - basic short
- +0000 - basic
- +00:00 - extended
- +0000 - sign character (+) followed by a four digit time providing hours (00) and minutes (00) of the offset. Indicates the zero UTC/GMT offset.
- Zulu - Military abbreviation for GMT
- Z - short form of 'Zulu'
- 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
- 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