Ruling · Vasantotsava · 2036

Thursday 13 March

Determinatein Daqing, under the Rashtriya Panchang method. Clear of every threshold by 529 minutes.

Decide it for

46°35′ N 125°00′ E · Asia/Shanghai · GeoNames 2037860

The two sunrises

One ghaṭī is 24 minutes. The sunrise is read as upper limb, 31′ + 16′.

Sunrise of Wednesday 12 March

Pratipadā does not hold at sunrise. Not taken.

05:59 sunrise
04:4705:1105:3505:5906:2306:4707:11

Absent at sunrise

Sunrise of Thursday 13 March

Taken. The only sunrise Pratipadā holds at.

05:57 sunrise
04:4505:0905:3305:5706:2106:4507:09

Holds at sunrise

Pratipadā presentSunrise, the instant the rule readsThe instant the tithi begins or ends

How it was decided

  1. 01

    Aṅga

    Pratipadā runs from 17:10 on Wed 12 Mar to 14:46 on Thu 13 Mar.

    2036-03-12T09:09:31Z → 2036-03-13T06:46:07Z

  2. 02

    Kāla

    Sunrise is at 05:59 on the 12th and 05:57 on the 13th.

    sunrise: upper limb, 31′ + 16′

  3. 03

    Rule

    Pratipadā must be current at sunrise. It is not on the 12th and is on the 13th.

    Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 105

  4. 04

    Tie-break

    Only one sunrise qualifies. No tie-break is needed.

    priority: purvaviddha → only-day · margin 31759 s

  5. 05

    Ruling

    Vasantotsava, Daqing, 2036: Thursday 13 March.

    confidence: determinate

Say it like this

In Daqing, Vasantotsava 2036 falls on Thursday 13 March. Pratipadā runs from 17:10 on Wed 12 Mar to 14:46 on Thu 13 Mar and is current at sunrise that day.

ahargana.org/daqing/festivals/2036/vasantotsava · pac-rp@2026.1

Who says what

AuthorityKindDate
Ahargaṇa, pac-rpThis rulingThu 13 Mar
Ahargaṇa, classicalDisc centre, no refractionThu 13 Mar
compat-drikpanchangComparison profileThu 13 Mar
No institution has a recorded ruling for Daqing.

Institutional rulings are recorded with a source address, and are never edited to agree.

The rule, as data

/rules/vasantotsava · ruleset 2026.3-draft

Month
Phālguna, amānta
Pakṣa · aṅga
Kṛṣṇa · Pratipadā
Kāla
Sunrise
Priority
Pūrvaviddhā
Tie-break
First day
Reference
CRC 1955, p. 105

“K 1 Vasantotsava (current at sunrise, if occurs on two successive days, it is to be observed on the first day).” Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 105.

The same rule, elsewhere

Twelve places, west to east. Local clock times.

PlacePratipadāSunrise 12thCoveredSunrise 13thCoveredRuled
Los Angeles02:10 → 23:4607:07holds07:05no12 Mar
Chicago04:10 → 01:4607:07holds07:05no12 Mar
Jersey City05:10 → 02:4607:12holds07:10no12 Mar
Port of Spain05:10 → 02:4606:15holds06:14no12 Mar
London09:10 → 06:4606:21no06:18holds13 Mar
Durban11:10 → 08:4605:55no05:55holds13 Mar
Dubai13:10 → 10:4606:31no06:30holds13 Mar
Delhi14:40 → 12:1606:34no06:33holds13 Mar
Kolkata14:40 → 12:1605:48no05:47holds13 Mar
Singapore17:10 → 14:4607:11no07:11holds13 Mar
Sydney20:10 → 17:4606:52no06:53holds13 Mar
Suva21:10 → 18:4606:08no06:09holds13 Mar
Profile · tradition
pac-rp@2026.1 · smarta
Rule
vasantotsava@2026.3-draft
Engine · kernel
0.1.0 · de440 7eef…ea74
Boundary margin
300 s

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