WEST to IST: WEST is 4 hours 30 minutes behind IST
Western European Time is 4 hours 30 minutes behind India Standard Time right now. It is 3:49 am WEST in Lisbon and 8:19 am IST in India.
Convert a specific time from WEST to IST
Pick any time and date to convert it both ways. The conversion runs in your browser against the real zone rules, so a date inside a daylight saving period gets that period's offset rather than today's.
What is the time difference between WEST and IST?
India Standard Time is 4 hours 30 minutes ahead of Western European Time. To go from WEST to IST you add 4 hours 30 minutes. That gap is not fixed. Across 2026 the distance between these two zones takes 2 different values, from 4 hours 30 minutes to 5 hours 30 minutes, because Lisbon moves its clocks and India does not. This page recomputes it rather than assuming.
WEST to IST conversion table
Every hour of Sunday, September 27, 2026 in Lisbon, with the matching reading in India. 4 of the 24 hours land on a different calendar date in India, which is the part people get wrong when they schedule across this pair.
| WEST | WEST 24h | IST | IST 24h | Date |
|---|---|---|---|---|
| 12:00 am | 00:00 | 4:30 am | 04:30 | same day |
| 1:00 am | 01:00 | 5:30 am | 05:30 | same day |
| 2:00 am | 02:00 | 6:30 am | 06:30 | same day |
| 3:00 am | 03:00 | 7:30 am | 07:30 | same day |
| 4:00 am | 04:00 | 8:30 am | 08:30 | same day |
| 5:00 am | 05:00 | 9:30 am | 09:30 | same day |
| 6:00 am | 06:00 | 10:30 am | 10:30 | same day |
| 7:00 am | 07:00 | 11:30 am | 11:30 | same day |
| 8:00 am | 08:00 | 12:30 pm | 12:30 | same day |
| 9:00 am | 09:00 | 1:30 pm | 13:30 | same day |
| 10:00 am | 10:00 | 2:30 pm | 14:30 | same day |
| 11:00 am | 11:00 | 3:30 pm | 15:30 | same day |
| 12:00 pm | 12:00 | 4:30 pm | 16:30 | same day |
| 1:00 pm | 13:00 | 5:30 pm | 17:30 | same day |
| 2:00 pm | 14:00 | 6:30 pm | 18:30 | same day |
| 3:00 pm | 15:00 | 7:30 pm | 19:30 | same day |
| 4:00 pm | 16:00 | 8:30 pm | 20:30 | same day |
| 5:00 pm | 17:00 | 9:30 pm | 21:30 | same day |
| 6:00 pm | 18:00 | 10:30 pm | 22:30 | same day |
| 7:00 pm | 19:00 | 11:30 pm | 23:30 | same day |
| 8:00 pm | 20:00 | 12:30 am | 00:30 | the next day |
| 9:00 pm | 21:00 | 1:30 am | 01:30 | the next day |
| 10:00 pm | 22:00 | 2:30 am | 02:30 | the next day |
| 11:00 pm | 23:00 | 3:30 am | 03:30 | the next day |
What are the best hours to schedule a call between WEST and IST?
4 hours of the standard 9:00 am to 5:00 pm working day line up in both zones, from 9:00 am WEST to 1:00 pm WEST. In India that window reads 1:30 pm to 5:30 pm. Outside it, one side is either not yet at their desk or already gone.
| WEST | IST | Working hours | Note |
|---|---|---|---|
| 9:00 am | 1:30 pm | both sides | mid morning in Lisbon, afternoon in India |
| 10:00 am | 2:30 pm | both sides | mid morning in Lisbon, afternoon in India |
| 11:00 am | 3:30 pm | both sides | mid morning in Lisbon, afternoon in India |
| 12:00 pm | 4:30 pm | both sides | noon in Lisbon, afternoon in India |
Does daylight saving change WEST to IST?
Western European Time is currently on WEST and changes next on Sunday, October 25, 2026, when the clock falls back from 1:59 am to 1:00 am and the offset moves from UTC+1 to UTC+0.
India Standard Time does not move its clocks at all, so its UTC+5:30 offset holds every day of the year.
Because the two sides do not move together, the answer to this conversion changes during the year. For part of the year the gap is 4 hours 30 minutes and for the rest it is 5 hours 30 minutes. The table above is built for today, not for an average day.
Is WEST ahead of or behind IST?
WEST is behind IST by 4 hours 30 minutes: when it is 12:00 pm in Lisbon, it is 4:30 pm in India. One wrinkle worth knowing: WET and WEST are two names for the same zone, not two zones. Western European Time reads WET in winter and WEST in summer. When somebody types "wet to ist" they nearly always mean the zone rather than the literal winter offset, so this page resolves WET to Europe/Lisbon and IST to Asia/Kolkata and applies whichever offset is genuinely in force on the day.
Western European Time covers Lisbon, Porto and the Canary Islands, one hour behind most of the continent. India Standard Time covers the whole of India on a single half hour offset. The identifiers behind them are Europe/Lisbon and Asia/Kolkata, which is what any calendar or scheduling system should be storing rather than a fixed number of hours.
Questions
- What is WEST in IST?
- WEST is 4 hours 30 minutes behind IST. 9:00 am WEST is 1:30 pm IST.
- How many hours ahead is IST of WEST?
- IST is 4 hours 30 minutes ahead of WEST. That varies across the year, between 4 hours 30 minutes and 5 hours 30 minutes.
- What time is it in India right now?
- 8:19 am IST on Sunday, September 27, 2026.
- When can Lisbon and India meet during working hours?
- Between 9:00 am and 1:00 pm WEST, which is 1:30 pm to 5:30 pm IST.
- Does this account for daylight saving?
- Yes. Every reading is computed from the IANA database for the actual date, so WEST and IST are the abbreviations genuinely in force today rather than a fixed assumption.
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