India uses a single time zone, and this guide covers them all: the offset in each city, the daylight saving dates, the best time to call from New York or London, and how to convert any time. The 5 major cities covered here are Mumbai, New Delhi, Bangalore, Kolkata, Chennai.
Try the tool: World Clock — see the current time in every city in India, with the date and the offset.
Time zones in India
| City | IANA time zone | Offset in January 2026 | Offset in July 2026 | Daylight saving? |
|---|---|---|---|---|
| Mumbai | Asia/Kolkata | UTC+05:30 | UTC+05:30 | No |
| New Delhi | Asia/Kolkata | UTC+05:30 | UTC+05:30 | No |
| Bangalore | Asia/Kolkata | UTC+05:30 | UTC+05:30 | No |
| Kolkata | Asia/Kolkata | UTC+05:30 | UTC+05:30 | No |
| Chennai | Asia/Kolkata | UTC+05:30 | UTC+05:30 | No |
With one time zone, India is simple: the whole country is on Asia/Kolkata, UTC+05:30 from UTC all year. There is no internal time difference to worry about — a meeting scheduled for 10am in Mumbai is 10am everywhere in the country. The only question is the difference from the rest of the world, and the table above gives it for January and July.
Daylight saving in India
None of the cities covered here observes daylight saving — India stays on the same offset all year. Mumbai: India has never observed daylight saving in the modern era. The country uses a single time zone, and in most of India the difference between summer and winter day length is small. New Delhi: India has never observed daylight saving in the modern era. The country uses a single time zone, and in most of India the difference between summer and winter day length is small. Bangalore: India has never observed daylight saving in the modern era. The country uses a single time zone, and in most of India the difference between summer and winter day length is small. Kolkata: India has never observed daylight saving in the modern era. The country uses a single time zone, and in most of India the difference between summer and winter day length is small. Chennai: India has never observed daylight saving in the modern era. The country uses a single time zone, and in most of India the difference between summer and winter day length is small. The advantage is simplicity: the offset you learn is the offset all year, and a meeting scheduled in January is at the same time in July.
What time is it in India when it is 12:00 UTC?
| City | Local time at 12:00 UTC (15 January 2026) |
|---|---|
| Mumbai | 5:30 pm |
| New Delhi | 5:30 pm |
| Bangalore | 5:30 pm |
| Kolkata | 5:30 pm |
| Chennai | 5:30 pm |
How to convert a time to India
Take 3pm in London. In January, London is UTC+00:00 and Mumbai is UTC+05:30, so 3pm in London is 8:30 pm in Mumbai. In July, London is UTC+01:00 and Mumbai is UTC+05:30, so 3pm in London is 7:30 pm in Mumbai. The answer is the same in July as in January, because neither place changes its offset — Mumbai does not observe daylight saving. The time zone converter does this for any two cities and any date, and the UTC converter converts from UTC.
The best time to call India
The overlap of a 9am–5pm working day between Mumbai and New York is none in January 2026; between Mumbai and London it is 2 hours 30 minutes. The best time to call is mid-morning in the city further east and late morning in the city further west — the overlap of the two best parts of the day. The meeting planner shows the overlap for any set of cities.
The time in India through the year
The offset of Mumbai month by month in 2026 — the local time when it is 12:00 UTC on the 15th of each month:
| Month | UTC offset | Local time at 12:00 UTC |
|---|---|---|
| January | UTC+05:30 | 5:30 pm |
| February | UTC+05:30 | 5:30 pm |
| March | UTC+05:30 | 5:30 pm |
| April | UTC+05:30 | 5:30 pm |
| May | UTC+05:30 | 5:30 pm |
| June | UTC+05:30 | 5:30 pm |
| July | UTC+05:30 | 5:30 pm |
| August | UTC+05:30 | 5:30 pm |
| September | UTC+05:30 | 5:30 pm |
| October | UTC+05:30 | 5:30 pm |
| November | UTC+05:30 | 5:30 pm |
| December | UTC+05:30 | 5:30 pm |
Mumbai stays on the same offset all twelve months, because it does not observe daylight saving — the table is the same in January and in July, and there is no clock change to remember. The world clock for Mumbai shows the live time and the offset in effect today.
India and the rest of the world
The time difference from Mumbai to six major cities, in January and in July 2026:
| City | Difference in January | Difference in July |
|---|---|---|
| New York | 10 hours 30 minutes ahead | 9 hours 30 minutes ahead |
| London | 5 hours 30 minutes ahead | 4 hours 30 minutes ahead |
| Paris | 4 hours 30 minutes ahead | 3 hours 30 minutes ahead |
| Tokyo | 3 hours 30 minutes behind | 3 hours 30 minutes behind |
| Sydney | 5 hours 30 minutes behind | 4 hours 30 minutes behind |
| Dubai | 1 hour 30 minutes ahead | 1 hour 30 minutes ahead |
The differences change between January and July wherever one of the two cities observes daylight saving and the other does not — or wherever they change on different dates. The time zone converter gives the difference for any date, so a conversion done for January is not reused for July without checking.
Calling India from London
In January, the working hours of Mumbai and London overlap between 9:00 am and 11:30 am London time — that is the window in which a call falls inside both working days. The best time inside the window is usually the middle of it, when both sides are mid-morning or early afternoon rather than at the edge of the working day. Outside the window, one side is either not yet at work or already finished, so the call has to be early morning or late evening for someone.
Neighbouring time zones
Other major cities in Asia, for comparison:
| City | Country | Offset in January 2026 |
|---|---|---|
| Tokyo | Japan | UTC+09:00 |
| Dubai | United Arab Emirates | UTC+04:00 |
| Singapore | Singapore | UTC+08:00 |
| Hong Kong | Hong Kong | UTC+08:00 |
| Shanghai | China | UTC+08:00 |
| Seoul | South Korea | UTC+09:00 |
| Bangkok | Thailand | UTC+07:00 |
| Beijing | China | UTC+08:00 |
Frequently asked questions
How many time zones does India have?
One: the whole country is on Asia/Kolkata. The table above gives the offset for each city in January and July.
What is the time zone of Mumbai?
Mumbai is on Asia/Kolkata, UTC+05:30 from UTC in January and UTC+05:30 in July. The world clock for Mumbai shows the live time.
Does India observe daylight saving?
No — none of the cities covered here observes daylight saving, so the offset is the same all year.
What time is it in Mumbai when it is 12:00 UTC?
5:30 pm on 15 January 2026 — Mumbai is UTC+05:30 from UTC in winter.
What is the best time to call India from London?
The overlap of working hours between Mumbai and London is 2 hours 30 minutes in January. Mid-morning in the city further east is usually the kindest time — use the meeting planner to check.
How do I convert a time to India?
Find the offset for the city and the date — the table above gives January and July — and add it to the UTC time, or use the time zone converter to convert between any two cities directly.
Related pages
- What time is it in Mumbai?
- What time is it in New Delhi?
- What time is it in Bangalore?
- What time is it in Kolkata?
- Time Zone Converter
- World Clock
- UTC Converter
- Daylight saving time 2026 dates
Sources
- IANA Time Zone Database, via Node.js Intl (
Intl.DateTimeFormatwithtimeZone) — offsets, daylight saving dates and local times in this article were worked out from the IANA database, not typed from memory. - TimeFlow's own time-zone data (
data/cities.ts,data/dst.ts), computed from the IANA database. - Time zone rules and offsets: the IANA Time Zone Database, as applied by this site's tools. Offsets and daylight saving dates on this page are computed from the database for the dates stated.
- TimeFlow's world clock and time zone converter — the live tools behind the numbers on this page.
- Time-zone and daylight saving rules are set by governments and can change. For flights, deadlines and meetings that cannot move, confirm the time with an official source.