IST to WEST Converter
WEST is not used on this date
This converter keeps WEST at GMT +1. Lisbon uses WET (GMT +0) on this date. Open the WET converter, or choose Lisbon, Las Palmas de Gran Canaria, or Porto for city-specific time.Compare IST time with WEST 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 Western European Summer Time
5:30 pm17:30 in IST is 1:00 pm13:00 in WEST
IST to WEST 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 WEST
5:30 pm17:30 India Standard Time (IST). Offset UTC +5:30 hours
1:00 pm13:00 Western European Summer Time (WEST). Offset UTC +1:00 hour
5:30 pm17:30 IST / 1:00 pm13:00 WEST
| IST | WEST |
|---|---|
| 12am (midnight) | 7:30 pm |
| 1am | 8:30 pm |
| 2am | 9:30 pm |
| 3am | 10:30 pm |
| 4am | 11:30 pm |
| 5am | 12:30 am |
| 6am | 1:30 am |
| 7am | 2:30 am |
| 8am | 3:30 am |
| 9am | 4:30 am |
| 10am | 5:30 am |
| 11am | 6:30 am |
| 12pm (noon) | 7:30 am |
| 1pm | 8:30 am |
| 2pm | 9:30 am |
| 3pm | 10:30 am |
| 4pm | 11:30 am |
| 5pm | 12:30 pm |
| 6pm | 1:30 pm |
| 7pm | 2:30 pm |
| 8pm | 3:30 pm |
| 9pm | 4:30 pm |
| 10pm | 5:30 pm |
| 11pm | 6:30 pm |
| 00:00 | 19:30 |
| 01:00 | 20:30 |
| 02:00 | 21:30 |
| 03:00 | 22:30 |
| 04:00 | 23:30 |
| 05:00 | 00:30 |
| 06:00 | 01:30 |
| 07:00 | 02:30 |
| 08:00 | 03:30 |
| 09:00 | 04:30 |
| 10:00 | 05:30 |
| 11:00 | 06:30 |
| 12:00 | 07:30 |
| 13:00 | 08:30 |
| 14:00 | 09:30 |
| 15:00 | 10:30 |
| 16:00 | 11:30 |
| 17:00 | 12:30 |
| 18:00 | 13:30 |
| 19:00 | 14:30 |
| 20:00 | 15:30 |
| 21:00 | 16:30 |
| 22:00 | 17:30 |
| 23:00 | 18:30 |
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
Western European Summer Time
Offset: WEST is 1 hour ahead Greenwich Mean Time (GMT) and is used in Europe
Countries using this time zone: Spain, Faroe Islands, Portugal
Principal Cities: The largest city in the WEST time zone is Lisbon in Portugal, with about 517,802 people. Other major cities in this time zone include Las Palmas de Gran Canaria, Porto, Santa Cruz de Tenerife, Amadora.
German: WESZ - Westeuropäische Sommerzeit

Daylight Saving: Western European Summer Time (WEST) is a daylight saving/summer time zone, but some places set clocks back one hour during winter and observe Western European Time (WET).
End: Western European Summer Time (WEST) ended on Sunday, October 26, 2025 at 2:00 am local time and clocks were set one hour back to Sunday, October 26, 2025, 1:00 am local standard time instead. Daylight saving ends annually on the last Sunday of October
Start: Western European Summer Time (WEST) starts on Sunday, March 29, 2026 at 1:00 am local time and clocks are set one hour forward to Sunday, March 29, 2026, 2:00 am. Daylight saving starts annually on the last Sunday of March
WEST 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 WEST
- A - short form of 'Alpha'
- Atlantic/Canary
- Atlantic/Faeroe
- Atlantic/Faroe
- Atlantic/Madeira
- Europe/Lisbon
- Portugal
- WET
- 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
