Vedic Astrology · City-Specific Kundli
कोलकाता (Kolkata), West Bengal
A free kundli for people born in Kolkata (22.5726°N, 88.3639°E): enter your date and exact time, and we calculate your lagna, rashi, nakshatra and house chart.
Kolkata is prefilled and editable. Enter the time on your birth record; do not add the solar-time offset yourself. Coordinates are approximate city ones, and Rahu and Ketu are not included.
IST (UTC+5:30) is anchored at 82.5°E, near Mirzapur. Kolkata sits at 88.3639°E, so its local solar time runs roughly 23 minutes ahead of clock time, and that offset carries into the lagna and house cusps.
These figures are calculated from Kolkata's coordinates (22.5726°N, 88.3639°E) with an astronomical ephemeris, not estimated. All clock times are Indian Standard Time (IST).
| Date (2026) | Sunrise | Sunset | Day length |
|---|---|---|---|
| 20 Mar (equinox) | 05:40 | 17:47 | 12h 7m |
| 21 Jun (longest day) | 04:52 | 18:23 | 13h 31m |
| 23 Sep (equinox) | 05:25 | 17:32 | 12h 7m |
| 21 Dec (shortest day) | 06:11 | 16:57 | 10h 45m |
Day length in Kolkata swings by 2h 46m between the longest and shortest day, the 17th largest of the 30 cities on this site. Its 21 June sunrise at 04:52 IST is the earliest of the 30. That is 32 minutes before Delhi's 21 June sunrise.
A worked example of the effect on lagna: at 06:00 IST on 21 June 2026 the sidereal ascendant in Kolkata is Gemini, and it moves into Cancer at 06:47 IST. At the same latitude on the 82.5°E IST meridian that change happens at 07:11 IST, so in Kolkata it comes 24 minutes earlier than on the meridian.
The same test in winter: at 06:00 IST on 21 December 2026 the ascendant in Kolkata is Sagittarius, moving into Capricorn at 08:00 IST, against 08:23 IST on the 82.5°E meridian, so 23 minutes earlier than the meridian. That is a different sign from the June example because the Sun has moved on.
The closest other city on this site to Kolkata is Patna, 469 km away. It has solar time 13 minutes behind Kolkata, a 21 June sunrise 7 minutes later and a day-length swing 25 minutes larger.
Method: ephemeris sunrise/sunset (sea level, with refraction); ascendant from mean obliquity and Lahiri ayanamsa. Other software may differ by a minute or two.
Centre of the Bengali panjika (almanac) tradition, which follows its own regional calendar conventions.
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Kolkata (West Bengal) lies at 88.3639°E, so its local time runs about 23 minutes ahead of IST, which is set at 82.5°E. Lagna and house boundaries depend on that, so the right city matters even though India uses one clock.
Near a sign boundary, yes. By our calculation, on 21 June 2026 the Gemini ascendant in Kolkata moves into Cancer at 06:47 IST, while at the same latitude on 82.5°E it does so at 07:11 IST. A birth between those two times gets a different lagna depending on the place used.
By our calculation, on 21 June 2026 the Sun rises in Kolkata at 04:52 IST and sets at 18:23 IST, while on 21 December it rises at 06:11 IST. Vara (weekday) and many panchang calculations start from local sunrise, so for a birth near dawn both the place and the date change the answer.
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