IST to GMT to SAST to EAT
Time Difference
India Standard Time is 5 hours and 30 minutes ahead of Greenwich Mean Time and 3 hours and 30 minutes ahead of South Africa Standard Time and 2 hours and 30 minutes ahead of Eastern Africa Time
11:00 am11:00 in IST is 5:30 am05:30 in GMT and is 7:30 am07:30 in SAST and is 8:30 am08:30 in EAT
IST to GMT call time
Best time for a conference call or a meeting is between 1:30pm-6pm in IST which corresponds to 8am-12:30pm in GMT
IST to SAST call time
Best time for a conference call or a meeting is between 11:30am-6pm in IST which corresponds to 8am-2:30pm in SAST
IST to EAT call time
Best time for a conference call or a meeting is between 10:30am-6pm in IST which corresponds to 8am-3:30pm in EAT
11:00 am11:00 India Standard Time (IST). Offset UTC +5:30 hours
5:30 am05:30 Greenwich Mean Time (GMT). Offset UTC 0:00 hours
7:30 am07:30 South Africa Standard Time (SAST). Offset UTC +2:00 hours
8:30 am08:30 Eastern Africa Time (EAT). Offset UTC +3:00 hours
11:00 am11:00 IST / 5:30 am05:30 GMT / 7:30 am07:30 SAST / 8:30 am08:30 EAT
IST | GMT | SAST | EAT |
---|---|---|---|
12am (midnight) | 6:30 pm | 8:30 pm | 9:30 pm |
1am | 7:30 pm | 9:30 pm | 10:30 pm |
2am | 8:30 pm | 10:30 pm | 11:30 pm |
3am | 9:30 pm | 11:30 pm | 12:30 am |
4am | 10:30 pm | 12:30 am | 1:30 am |
5am | 11:30 pm | 1:30 am | 2:30 am |
6am | 12:30 am | 2:30 am | 3:30 am |
7am | 1:30 am | 3:30 am | 4:30 am |
8am | 2:30 am | 4:30 am | 5:30 am |
9am | 3:30 am | 5:30 am | 6:30 am |
10am | 4:30 am | 6:30 am | 7:30 am |
11am | 5:30 am | 7:30 am | 8:30 am |
12pm (noon) | 6:30 am | 8:30 am | 9:30 am |
1pm | 7:30 am | 9:30 am | 10:30 am |
2pm | 8:30 am | 10:30 am | 11:30 am |
3pm | 9:30 am | 11:30 am | 12:30 pm |
4pm | 10:30 am | 12:30 pm | 1:30 pm |
5pm | 11:30 am | 1:30 pm | 2:30 pm |
6pm | 12:30 pm | 2:30 pm | 3:30 pm |
7pm | 1:30 pm | 3:30 pm | 4:30 pm |
8pm | 2:30 pm | 4:30 pm | 5:30 pm |
9pm | 3:30 pm | 5:30 pm | 6:30 pm |
10pm | 4:30 pm | 6:30 pm | 7:30 pm |
11pm | 5:30 pm | 7:30 pm | 8:30 pm |
0:00 | 18:30 | 20:30 | 21:30 |
1:00 | 19:30 | 21:30 | 22:30 |
2:00 | 20:30 | 22:30 | 23:30 |
3:00 | 21:30 | 23:30 | 0:30 |
4:00 | 22:30 | 0:30 | 1:30 |
5:00 | 23:30 | 1:30 | 2:30 |
6:00 | 0:30 | 2:30 | 3:30 |
7:00 | 1:30 | 3:30 | 4:30 |
8:00 | 2:30 | 4:30 | 5:30 |
9:00 | 3:30 | 5:30 | 6:30 |
10:00 | 4:30 | 6:30 | 7:30 |
11:00 | 5:30 | 7:30 | 8:30 |
12:00 | 6:30 | 8:30 | 9:30 |
13:00 | 7:30 | 9:30 | 10:30 |
14:00 | 8:30 | 10:30 | 11:30 |
15:00 | 9:30 | 11:30 | 12:30 |
16:00 | 10:30 | 12:30 | 13:30 |
17:00 | 11:30 | 13:30 | 14:30 |
18:00 | 12:30 | 14:30 | 15:30 |
19:00 | 13:30 | 15:30 | 16:30 |
20:00 | 14:30 | 16:30 | 17:30 |
21:00 | 15:30 | 17:30 | 18:30 |
22:00 | 16:30 | 18:30 | 19:30 |
23:00 | 17:30 | 19:30 | 20:30 |
India Standard Time
Offset: IST is 5 hours and 30 minutes ahead Greenwich Mean Time (GMT) and is used in Asia
Countries: It is used in following countries: India
Principal Cities: The largest city in the IST timezone is Mumbai from India with population about 12.692 million people. Other major cities in the area are Delhi, Bangalore, Kolkata, Chennai
Daylight Saving: India Standard Time (IST) is not adjusted for daylight saving therefore IST remains the same through out the year. This means, unlike some time zones where the clock is set forward by one hour every summer and backward by one hour during winter to adjust for daylight saving, India Standard Time remains the same
IST representations, usage and related time zones
- +0530 - basic
- +05:30 - extended
- +0530 - sign character (+) followed by a four digit time providing hours (05) and minutes (30) of the offset. Indicates five hour and thirty minutes time differences to the east of the zero meridian.
- Asia/Calcutta
- Asia/Kolkata
- India Standard Time - UTC +5:30
- Irish Standard Time - UTC +1
- Israel Standard Time - UTC +2
- Iran Standard Time - UTC +3:30
Greenwich Mean Time
Offset: GMT is 0 hours ahead Greenwich Mean Time (GMT) and is used in Europe
Countries: It is used in following countries: Burkina Faso, Côte d'Ivoire, Britain (UK), Guernsey, Ghana, Greenland, Gambia, Guinea, Guinea-Bissau, Ireland, Isle of Man, Iceland, Jersey, Liberia, Mali, Mauritania, St Helena, Sierra Leone, Senegal, Sao Tome & Principe, Togo
Principal Cities: The largest city in the GMT timezone is London from United Kingdom with population about 7.557 million people. Other major cities in the area are Abidjan, Dakar, Grand Dakar, Accra
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 for the most parts it is the same. In military GMT is known as Zulu time.Greenwich Mean Time was the same as Universal Time (UT), until the introduction of UTC in 1972 a standard astronomical concept used in many technical fields.
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 zero hour and zero minutes time differences of the zero meridian.
- 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
- Greenwich Mean Time - UTC +0
- GMT+03:00 - UTC +3
- GMT - UTC +1
- GMT+06:00 - UTC +6
- GMT-01:00 - UTC -1
- GMT+11:00 - UTC +11
- EGST - Eastern Greenland Summer Time
- GMT - Greenwich Mean Time
- WET - Western European Time
- AZOST - Azores Summer Time
- UTC - Universal Time Coordinated
- WT - Western Sahara Standard Time
- Z - Zulu Time Zone
South Africa Standard Time
Offset: SAST is 2 hours ahead Greenwich Mean Time (GMT) and is used in Africa
Countries: It is used in following countries: Lesotho, Eswatini (Swaziland), South Africa
Principal Cities: The largest city in the SAST timezone is Cape Town from South Africa with population about 3.433 million people. Other major cities in the area are Durban, Johannesburg, Soweto, Pretoria
Daylight Saving: South Africa Standard Time (SAST) is not adjusted for daylight saving therefore SAST remains the same through out the year. This means, unlike some time zones where the clock is set forward by one hour every summer and backward by one hour during winter to adjust for daylight saving, South Africa Standard Time remains the same
SAST representations, usage and related time zones
- +02 - basic short
- +0200 - basic
- +02:00 - extended
- +0200 - sign character (+) followed by a four digit time providing hours (02) and minutes (00) of the offset. Indicates two hour and zero minutes time differences to the east of the zero meridian.
- Bravo - Military abbreviation for SAST
- B - short form of 'Bravo'
- Africa/Johannesburg
- Africa/Maseru
- Africa/Mbabane
- CEST - Central European Summer Time
- EET - Eastern European Time
- MESZ - Mitteleuropäische Sommerzeit
- B - Bravo Time Zone
- CAT - Central Africa Time
- IST - Israel Standard Time
- SAST - South Africa Standard Time
- WAST - West Africa Summer Time
Eastern Africa Time
Offset: EAT is 3 hours ahead Greenwich Mean Time (GMT) and is used in Africa
Countries: It is used in following countries: Djibouti, Eritrea, Ethiopia, Kenya, Comoros, Madagascar, Somalia, Tanzania, Uganda, Mayotte
Principal Cities: The largest city in the EAT timezone is Addis Ababa from Ethiopia with population about 2.758 million people. Other major cities in the area are Nairobi, Dar es Salaam, Mogadishu, Antananarivo
Daylight Saving: Eastern Africa Time (EAT) is not adjusted for daylight saving therefore EAT remains the same through out the year. This means, unlike some time zones where the clock is set forward by one hour every summer and backward by one hour during winter to adjust for daylight saving, Eastern Africa Time remains the same
EAT representations, usage and related time zones
- +03 - basic short
- +0300 - basic
- +03:00 - extended
- +0300 - sign character (+) followed by a four digit time providing hours (03) and minutes (00) of the offset. Indicates three hour and zero minutes time differences to the east of the zero meridian.
- Charlie - Military abbreviation for EAT
- C - short form of 'Charlie'
- Africa/Addis_Ababa
- Africa/Asmara
- Africa/Asmera
- Africa/Dar_es_Salaam
- Africa/Djibouti
- Africa/Kampala
- Africa/Mogadishu
- Africa/Nairobi
- Indian/Antananarivo
- Indian/Comoro
- Indian/Mayotte
- EEST - Eastern European Summer Time
- MSK - Moscow Standard Time
- AST - Arabia Standard Time
- C - Charlie Time Zone
- EAT - Eastern Africa Time
- FET - Further Eastern European Time
- IDT - Israel Daylight Time
- TRT - Turkey Time