Panchang · Bihar · Lahiri sidereal
Panchang for Patna today
Today’s tithi, nakshatra, yoga and karana for Patna, with sunrise and sunset for its own coordinates, 25.59° N, 85.14° E, calculated on the Lahiri sidereal zodiac. The numbers fill in when the page opens; the explanation below stays the same all year.
Today in Patna
At a glance
- Region
- Bihar
- Coordinates
- 25.59° N, 85.14° E
- Time zone
- Asia/Kolkata · UTC+5:30 all year, with no daylight saving
- Mean solar noon
- 11:49 IST (mean; the equation of time moves it by up to a quarter of an hour)
Sunrise and sunset in Patna
The table gives sunrise, sunset and day length in Patna on the two equinoxes and two solstices of 2027, in the city’s own time. On 21 June daylight in Patna lasts 13 h 44 min, against 13 h 58 min in Delhi; on 22 December it lasts 10 h 33 min, against 10 h 19 min. By the clock, sunrise on 22 December is 38 minutes earlier than in Delhi and sunset is 25 minutes earlier.
| Date | Sunrise | Sunset | Day length |
|---|---|---|---|
| 20 March 2027 · March equinox | 5:54 am | 6:00 pm | 12 h 6 min |
| 21 June 2027 · June solstice | 4:59 am | 6:43 pm | 13 h 44 min |
| 23 September 2027 · September equinox | 5:38 am | 5:45 pm | 12 h 7 min |
| 22 December 2027 · December solstice | 6:31 am | 5:04 pm | 10 h 33 min |
The local calendar
Bihar follows the purnimanta month. Chhath, the festival of offerings to the setting and rising Sun, is the state’s signature festival, and the Chhath page lists Patna’s sunset and next sunrise.
The five limbs of the panchang
Panchang means five limbs. The tithi is the angle between the Moon and the Sun, in steps of 12°; the vara is the weekday, counted from sunrise; the nakshatra is the star the Moon is in, one of 27 divisions of 13°20′; the yoga comes from the sum of the Sun’s and Moon’s longitudes, also in steps of 13°20′; and the karana is half a tithi. All five are read on the sidereal zodiac with the Lahiri ayanamsa.
How the numbers are calculated
Sunrise and sunset are the moments the Sun’s upper edge meets the sea-level horizon, with standard atmospheric refraction, calculated by the astronomy-engine library for the city’s coordinates. The moments at which a tithi, nakshatra, yoga or karana ends come from the Moon’s and Sun’s positions and are the same instant everywhere on Earth; the city only changes what clock time and which day that instant falls on.
Questions people ask
What time is sunrise in Patna today?
The live panel at the top of this page gives today’s sunrise and sunset for Patna, calculated when the page opens. For the year as a whole, the table shows 4:59 am sunrise on 21 June and 6:31 am on 22 December.
Which time zone does Patna use?
Patna uses Asia/Kolkata: UTC+5:30 all year, with no daylight saving. All times on this page are shown in that zone.
Is the panchang in Patna different from Delhi?
Only a little. The tithi, nakshatra, yoga and karana end at the same clock time in every Indian city, because India has one time zone. Sunrise and sunset differ, by up to about an hour across the country, and so can the tithi that counts for the day.
How is the panchang for Patna calculated?
On the sidereal zodiac with the Lahiri ayanamsa (about 24°14′ in October 2026), using the astronomy-engine library for the Moon’s and Sun’s positions and for sunrise and sunset at 25.59° N, 85.14° E. The method page has the details.
Where can I find festival times for Patna?
Every festival page has a city selector that includes Patna, with dates for 2026, 2027 and 2028 and the muhurat windows.
Every position on this page is calculated sidereal with the Lahiri ayanamsa from the astronomy-engine library (MIT licence). The classical texts describe tendencies; this page is for guidance and reflection, not a verdict, and no outcome is promised. How we calculate. This is the English page and the legal reference. The same page is available in Hindi. Checked October 2026.