This IST to CET converter turns any time in India Standard Time (IST) into Central European Time (CET), using your device clock so daylight saving is applied automatically. CET is 4 hours 30 minutes behind IST when both zones are on standard time, and 3 hours 30 minutes behind during the summer months when clocks have shifted. IST is UTC+5:30; CET is UTC+1 (CEST: UTC+2).
IST covers Mumbai, Delhi, Bengaluru; CET covers Paris, Berlin, Madrid. Because only CET observes daylight saving time, the difference is not constant through the year. The tables below show both cases, and the converter at the top always uses the rule in force on the date you pick.
IST and CET UTC offsets
IST
UTC+5:30
India Standard Time
No daylight saving time
CET
UTC+1
Central European Time
CEST UTC+2 from March 29 to October 25, 2026
IST to CET conversion table (standard time)
| IST | CET |
|---|---|
| 12 am | 7:30 pmprevious day |
| 3 am | 10:30 pmprevious day |
| 6 am | 1:30 am |
| 8 am | 3:30 am |
| 9 am | 4:30 am |
| 10 am | 5:30 am |
| 11 am | 6:30 am |
| 12 pm | 7:30 am |
| 1 pm | 8:30 am |
| 2 pm | 9:30 am |
| 3 pm | 10:30 am |
| 4 pm | 11:30 am |
| 5 pm | 12:30 pm |
| 6 pm | 1:30 pm |
| 8 pm | 3:30 pm |
| 10 pm | 5:30 pm |
IST to CET during daylight saving
Between the dates listed above, the difference is 3 hours 30 minutes instead of 4 hours 30 minutes.
| IST | CET/CEST |
|---|---|
| 12 am | 8:30 pmprevious day |
| 3 am | 11:30 pmprevious day |
| 6 am | 2:30 am |
| 8 am | 4:30 am |
| 9 am | 5:30 am |
| 10 am | 6:30 am |
| 11 am | 7:30 am |
| 12 pm | 8:30 am |
| 1 pm | 9:30 am |
| 2 pm | 10:30 am |
| 3 pm | 11:30 am |
| 4 pm | 12:30 pm |
| 5 pm | 1:30 pm |
| 6 pm | 2:30 pm |
| 8 pm | 4:30 pm |
| 10 pm | 6:30 pm |
Frequently asked questions
What is the time difference between IST and CET?
CET is 4 hours 30 minutes behind IST on standard time. During daylight saving the gap changes to 3 hours 30 minutes. That comes from the UTC offsets: IST is UTC+5:30 and CET is UTC+1. For example, 9 am IST = 4:30 am CET, and in summer 9 am IST = 5:30 am CET.
Is CET ahead of or behind IST?
CET is 4 hours 30 minutes behind IST, so when it is noon in IST it is 7:30 am in CET. Ahead means the clock there already shows a later time; a call at 5 pm IST lands at 12:30 pm CET.
Does IST or CET observe daylight saving time in 2026?
IST keeps UTC+5:30 all year. CET switches to CEST (UTC+2) on March 29 and back on October 25. Between those dates the difference in the table above shifts by an hour, which is the usual cause of missed calls in spring and autumn.
What is the best time for a meeting between IST and CET?
Standard office hours (9 am to 5 pm) overlap from 1.5 pm to 5 pm IST, which is 9 am to 0.5 pm CET. Pick a slot inside that window and both sides stay within a normal working day. Check the daylight saving dates above, because the window moves by an hour when only one side has changed clocks.
Which cities use IST and CET?
IST (India Standard Time) is used in Mumbai, Delhi, Bengaluru, Kolkata. CET (Central European Time) is used in Paris, Berlin, Madrid, Rome, Amsterdam. Some cities inside a zone skip daylight saving, noted in parentheses, so their offset matches only part of the year.