| CITY | LOCAL TIME | Difference | Coming up |
|---|---|---|---|
| London United Kingdom | 01:00 | −4:30 | Becomes −5:30 on 25 Oct |
| Berlin Germany | 02:00 | −3:30 | Becomes −4:30 on 25 Oct |
| Dubai UAE | 04:00 | −1:30 | |
| Tokyo Japan | 09:00 | +3:30 | |
| Sydney Australia | 10:00 | +4:30 | Becomes +5:30 on 4 Oct |
| New York United States | 20:00Wed | −9:30 | Becomes −10:30 on 1 Nov |
| Los Angeles United States | 17:00Wed | −12:30 | Becomes −13:30 on 1 Nov |
Guwahati, India runs on UTC+5:30. This time zone stays fixed year-round at UTC+5:30 — daylight saving time is not observed. The time difference between Guwahati and New York is 9 hours and 30 minutes. Standard working hours don't overlap at all with New York, so meetings need an early or late slot on one side. The time difference between Guwahati and London is 4 hours and 30 minutes. Standard 9-to-6 working hours overlap for about 4 hours and 30 minutes a day with London. A good time to connect: 13:30–18:00 in Guwahati lines up with 09:00–13:30 in London. The time difference between Guwahati and Tokyo is 3 hours and 30 minutes. Standard 9-to-6 working hours overlap for about 5 hours and 30 minutes a day with Tokyo. A good time to connect: 09:00–14:30 in Guwahati lines up with 12:30–18:00 in Tokyo. This timezone is also shared with cities such as Mumbai, Delhi, Bangalore. Keeping these offsets in mind makes it easier to schedule calls or travel to and from Guwahati.
Guwahati (India) is home to roughly 1.1M people. Today brings about 11.9 hours of daylight: sunrise at 05:14, sunset at 17:11. This time zone stays fixed year-round at UTC+5:30 — daylight saving time is not observed. It sits in the Northern Hemisphere, about 26° north of the equator. Traffic drives on the left.
Flag
India
Capital
New Delhi
Continent
Asia
Time Zone
UTC+5:30 · Asia/Kolkata
Coordinates
26.14°N, 91.74°E
Currency
INR (₹)
Calling Code
+91
Driving Side
Left
Hemisphere
Northern
Language
Hindi, English
Measurement System
Metric
Did You Know?
Majuli, upstream from Guwahati, was once around 1,250 square kilometres and is among the largest river islands in the world — though erosion by the Brahmaputra has cut it to a third of that.
The clock: Guwahati keeps UTC+5:30 at 91.7° east. Northeast India has campaigned for its own time zone for decades, since the sun rises here well before 05:00 in summer.
Guwahati lies at 91.7°E. Its time zone, UTC+5:30, is built around the 82.5°E meridian. The 9.2° gap between them means the clock runs roughly 37 minutes behind the sun: solar noon arrives at about 11:23 rather than 12:00. The zone holds UTC+5:30 all year — there is no daylight saving here.
The longest day of 2026 is 22 June, with 13h 47m of daylight. The shortest is 22 December, with 10h 30m. The swing between them is 3h 17m. At this latitude the seasons are visible in the clock, but never dramatic.
The earliest sunrise and the latest sunset do not land on the longest day. In Guwahati the sun comes up earliest on 10 June at 04:30, while the latest sunset waits until 4 July at 18:19. The equation of time is what separates them: the Earth's elliptical orbit and axial tilt move solar noon back and forth by several minutes over the year.
The sky stays usably light for a while after the sun goes down. In Guwahati that civil twilight runs about 23 minutes at the equinox.
Every figure in this section is computed from the city's own latitude, longitude and IANA time zone using NOAA solar algorithms (Spencer, 1971), accurate to about ±2 arcminutes below 65° latitude.
The official timezone for Guwahati, India is Asia/Kolkata with a current UTC offset of UTC+5:30.
Guwahati has an estimated population of 1.1M and is located at coordinates 26.14°N, 91.74°E.
Guwahati gets 13h 47m of daylight on its longest day and 10h 30m on its shortest, averaging 12h 9m a day across the year.
Solar noon in Guwahati falls at about 11:23 on UTC+5:30 standard time, because the city sits 9.2° from the meridian its zone is built on.
A River Island the Size of a City: Majuli, upstream from Guwahati, was once around 1,250 square kilometres and is among the largest river islands in the world — though erosion by the Brahmaputra has cut it to a third of that.