Lucknow in numbers
- Coordinates
- 26.8393, 80.9231
- Population
- 2 472 011
- Region
- Uttar Pradesh
- Country
- India, Asia
- Capital
- New Delhi — 415 km away
- Same name
- 7 more places in the world share this name
Lucknow follows India Standard Time, UTC+5:30, every day of the year. Use this page for the Uttar Pradesh capital’s civil clock, sunrise, sunset, and weather.
Lucknow, India
Friday, 4 September 2026
UTC+5:30 · Asia/Kolkata
Local time in Lucknow
UTC+5:30 · no daylight saving time
Sunrise 05:48 Solar noon 12:07 Sunset 18:26 Daylight 12 h 37 min Night 11 h 23 min Civil twilight 05:25 – 18:49
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Weather data by Open-Meteo, updated every 30 minutes.
Postal codes come from the free GeoNames dataset. Where a code is listed with a distance, it belongs to a nearby settlement — GeoNames spells that name differently from ours.
Lucknow is the capital of Uttar Pradesh, in the Awadh region of northern India, on the Gomti River. Official time is India Standard Time: five hours and thirty minutes ahead of UTC. Lucknow does not run a summer clock. There is no spring-forward and no fall-back. The half hour is part of the zone, not a rounding of a whole-hour neighbour.
India keeps one civil offset for the whole country. Mumbai, Kolkata, Chennai, and Lucknow display the same numbers at the same instant. Software stores that offset as Asia/Kolkata. The name is a database convention. Selecting Kolkata, Mumbai, or “India” in a world-clock list should produce the same hour. If two devices disagree, one of them is not on India Standard Time, or one still has a leftover daylight-saving toggle that India does not use.
IST is a crowded abbreviation. It is also used, in other contexts, for Irish Standard Time and for Israel Standard Time. When a meeting invite is international, write Lucknow or UTC+5:30. Do not assume three letters will survive a copy-paste into someone else’s calendar.
Pakistan, to the west, is UTC+5. Bangladesh, to the east, is UTC+6. Lucknow sits between those whole hours on a half-hour offset. A call that “should be the same afternoon” with Lahore or Dhaka is thirty minutes off unless you convert.
The Gomti does not create a municipal zone. Bridges, old city lanes, and newer districts all use India Standard Time. What changes across town is shade, haze, and how much of the horizon you can see. Civil noon is still 12:00. Solar noon is the sun’s highest point for these coordinates, and it will not land on 12:00 exactly.
Civil time: India Standard Time, UTC+5:30, year-round. IANA name: Asia/Kolkata. Daylight saving: not used. Neighbour offsets: Pakistan UTC+5, Bangladesh UTC+6, Nepal UTC+5:45. Convert; do not guess. Because Lucknow never changes offset, a standing weekly call at 16:00 local time stays at 16:00 in Lucknow. The person in London, New York, or Sydney may see that appointment slide when their own daylight-saving rules kick in. If the call keeps drifting on one side only, the broken side is usually not Lucknow.
Uttar Pradesh does not have a provincial hour. Kanpur, Varanasi, and Agra keep the same civil time. Sunrise tables still belong to each city’s coordinates. If light matters, name the place. If a timetable matters, name IST.
Half an hour is not a rounding error. If the invite came from Dubai or Dhaka, count the thirty minutes.
Lucknow sits far enough north for day length to change clearly through the year. Winter afternoons end earlier than summer ones. That swing is the sun, not a legal clock jump. People still talk about long June evenings here, and they are right about the light.
The climate is humid subtropical: a hot season, a cooler season, and a monsoon period are the ordinary pattern. Dust, haze, and cloud can hide a calculated sunrise. The weather shown here is the current reading for the city. Treat it as now, not as a season in a sentence, and not as a guarantee hours ahead.
Use the sun times for morning light, photography, or an outdoor end point. Trains, offices, and calls run on civil time. The sunrise figure is computed as if the Gomti plain were an empty horizon. A courtyard in the old city is not that horizon. If you need twilight, use a dawn or dusk figure for Lucknow rather than copying Delhi’s minutes. The cities share an offset and not a skyline.
Write “11:00 Lucknow (UTC+5:30)” when the audience is mixed. That survives a phone that auto-detected a whole-hour zone, a colleague who thinks IST means Dublin, and a spreadsheet that rounded 5:30 to 5. The city name travels. The offset does the arithmetic.
For travel inside India you will not cross a civil-time boundary on the way to Delhi, Patna, or Mumbai. You will cross weather and sunrise minutes. Pack the clock as UTC+5:30 and let the sky be local.