IST to CET to UTC
Compare IST time with CET and UTC time, including current local time, UTC offsets, time difference, daylight saving changes, working hours, and shareable meeting times.
Time Difference
India Standard Time is 4 hours and 30 minutes ahead of Central European Time and 5 hours and 30 minutes ahead of Universal Time Coordinated
5:30 pm17:30 in IST is 1:00 pm13:00 in CET and is 12:00 pm12:00 in UTC
IST to CET call time
Best time for a conference call or a meeting is between 1:30pm-5pm in IST which corresponds to 9am-12:30pm in CET
IST to UTC call time
Best time for a conference call or a meeting is between 2:30pm-5pm in IST which corresponds to 9am-11:30am in UTC
5:30 pm17:30 India Standard Time (IST). Offset UTC +5:30 hours
1:00 pm13:00 Central European Time (CET). Offset UTC +1:00 hour
12:00 pm12:00 Universal Time Coordinated (UTC). Offset UTC 0:00 hours
5:30 pm17:30 IST / 1:00 pm13:00 CET / 12:00 pm12:00 UTC
| IST | CET | UTC |
|---|---|---|
| 12am (midnight) | 7:30 pm | 6:30 pm |
| 1am | 8:30 pm | 7:30 pm |
| 2am | 9:30 pm | 8:30 pm |
| 3am | 10:30 pm | 9:30 pm |
| 4am | 11:30 pm | 10:30 pm |
| 5am | 12:30 am | 11:30 pm |
| 6am | 1:30 am | 12:30 am |
| 7am | 2:30 am | 1:30 am |
| 8am | 3:30 am | 2:30 am |
| 9am | 4:30 am | 3:30 am |
| 10am | 5:30 am | 4:30 am |
| 11am | 6:30 am | 5:30 am |
| 12pm (noon) | 7:30 am | 6:30 am |
| 1pm | 8:30 am | 7:30 am |
| 2pm | 9:30 am | 8:30 am |
| 3pm | 10:30 am | 9:30 am |
| 4pm | 11:30 am | 10:30 am |
| 5pm | 12:30 pm | 11:30 am |
| 6pm | 1:30 pm | 12:30 pm |
| 7pm | 2:30 pm | 1:30 pm |
| 8pm | 3:30 pm | 2:30 pm |
| 9pm | 4:30 pm | 3:30 pm |
| 10pm | 5:30 pm | 4:30 pm |
| 11pm | 6:30 pm | 5:30 pm |
| 00:00 | 19:30 | 18:30 |
| 01:00 | 20:30 | 19:30 |
| 02:00 | 21:30 | 20:30 |
| 03:00 | 22:30 | 21:30 |
| 04:00 | 23:30 | 22:30 |
| 05:00 | 00:30 | 23:30 |
| 06:00 | 01:30 | 00:30 |
| 07:00 | 02:30 | 01:30 |
| 08:00 | 03:30 | 02:30 |
| 09:00 | 04:30 | 03:30 |
| 10:00 | 05:30 | 04:30 |
| 11:00 | 06:30 | 05:30 |
| 12:00 | 07:30 | 06:30 |
| 13:00 | 08:30 | 07:30 |
| 14:00 | 09:30 | 08:30 |
| 15:00 | 10:30 | 09:30 |
| 16:00 | 11:30 | 10:30 |
| 17:00 | 12:30 | 11:30 |
| 18:00 | 13:30 | 12:30 |
| 19:00 | 14:30 | 13:30 |
| 20:00 | 15:30 | 14:30 |
| 21:00 | 16:30 | 15:30 |
| 22:00 | 17:30 | 16:30 |
| 23:00 | 18:30 | 17:30 |
India Standard Time
Offset: IST is 5 hours and 30 minutes ahead Greenwich Mean Time (GMT) and is used in Asia
Countries using this time zone: India
Principal Cities: The largest city in the IST time zone is Mumbai in India, with about 12.692 million people. Other major cities in this time zone include Delhi, Bangalore, Kolkata, Chennai.
Daylight Saving: Clocks in India Standard Time (IST) do not change for daylight saving time, so IST stays the same throughout the year. Other time zones may set clocks forward in summer and back in winter.
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 an offset of five hours and thirty minutes 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
Central European Time
Offset: CET is 1 hour ahead Greenwich Mean Time (GMT) and is used in Europe
Countries using this time zone: Andorra, Albania, Austria, Bosnia & Herzegovina, Belgium, Switzerland, Czech Republic, Germany, Denmark, Algeria, Spain, France, Gibraltar, Croatia, Hungary, Italy, Liechtenstein, Luxembourg, Monaco, Montenegro, North Macedonia, Malta, Netherlands, Norway, Poland, Serbia, Sweden, Slovenia, Svalbard & Jan Mayen, Slovakia, San Marino, Tunisia, Vatican City
Principal Cities: The largest city in the CET time zone is Berlin in Germany, with about 3.426 million people. Other major cities in this time zone include Madrid, Rome, Paris, Algiers.
German: MEZ - Mitteleuropäische Zeit
Daylight Saving: This is a standard time zone. During summer, some places set clocks forward one hour for daylight saving time and observe Central European Summer Time (CEST).
Start: Central European Time (CET) started on Sunday, October 26, 2025 at 3:00 am local time and clocks were set one hour back to Sunday, October 26, 2025, 2:00 am. Standard time starts annually on the last Sunday of October.
End: Central European Time (CET) ends on Sunday, March 29, 2026 at 2:00 am local time and clocks are set one hour forward to Sunday, March 29, 2026, 3:00 am local daylight time instead. Standard time ends annually on the last Sunday of March.
CET representations, usage and related time zones
- +01 - basic short
- +0100 - basic
- +01:00 - extended
- +0100 - sign character (+) followed by a four digit time providing hours (01) and minutes (00) of the offset. Indicates an offset of one hour to the east of the zero meridian.
- Alpha - Military abbreviation for CET
- A - short form of 'Alpha'
- Africa/Algiers
- Africa/Ceuta
- Africa/Tunis
- Arctic/Longyearbyen
- Atlantic/Jan_Mayen
- CET
- Europe/Amsterdam
- Europe/Andorra
- Europe/Belgrade
- Europe/Berlin
- Europe/Bratislava
- Europe/Brussels
- Europe/Budapest
- Europe/Busingen
- Europe/Copenhagen
- Europe/Gibraltar
- Europe/Ljubljana
- Europe/Luxembourg
- Europe/Madrid
- Europe/Malta
- Europe/Monaco
- Europe/Oslo
- Europe/Paris
- Europe/Podgorica
- Europe/Prague
- Europe/Rome
- Europe/San_Marino
- Europe/Sarajevo
- Europe/Skopje
- Europe/Stockholm
- Europe/Tirane
- Europe/Vaduz
- Europe/Vatican
- Europe/Vienna
- Europe/Warsaw
- Europe/Zagreb
- Europe/Zurich
- MET
- Poland
- BST - British Summer Time
- CET - Central European Time
- IST - Irish Standard Time
- WEST - Western European Summer Time
- A - Alpha Time Zone
- CET - Central European Time
- MEZ - Mitteleuropäische Zeit
- WAT - West Africa Time
- WST - Western Sahara Summer Time
- BMT - Biel Mean Time
Universal Time Coordinated
Offset: UTC is 0 hours ahead Greenwich Mean Time (GMT) and is used in Universal
Coordinated Universal Time (UTC) is the world time standard that regulates clocks and time. It is successor to Greenwich Mean Time (GMT). For casual use, UTC is the same as GMT, but is used by the scientific community.
UTC is the time standard commonly used across the world since 1972. It is used in many technical fields, like aviation industry and meteorologists, also used to synchronize time across internet networks.
UTC 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 UTC
- Z - short form of 'Zulu'
- Etc/UCT
- Etc/UTC
- Etc/Universal
- Etc/Zulu
- UCT
- UTC
- Universal
- Zulu
- 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