Ruling · Vasantotsava · 1974

Saturday 9 March

Determinatein Daqing, under the Rashtriya Panchang method. Clear of every threshold by 560 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 Friday 8 March

Pratipadā does not hold at sunrise. Not taken.

06:08 sunrise
04:5605:2005:4406:0806:3206:5607:20

Absent at sunrise

Sunrise of Saturday 9 March

Taken. The only sunrise Pratipadā holds at.

06:06 sunrise
04:5405:1805:4206:0606:3006:5407:18

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 18:03 on Fri 8 Mar to 15:26 on Sat 9 Mar.

    1974-03-08T10:02:54Z → 1974-03-09T07:26:29Z

  2. 02

    Kāla

    Sunrise is at 06:08 on the 8th and 06:06 on the 9th.

    sunrise: upper limb, 31′ + 16′

  3. 03

    Rule

    Pratipadā must be current at sunrise. It is not on the 8th and is on the 9th.

    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 33604 s

  5. 05

    Ruling

    Vasantotsava, Daqing, 1974: Saturday 9 March.

    confidence: determinate

Say it like this

In Daqing, Vasantotsava 1974 falls on Saturday 9 March. Pratipadā runs from 18:03 on Fri 8 Mar to 15:26 on Sat 9 Mar and is current at sunrise that day.

ahargana.org/daqing/festivals/1974/vasantotsava · pac-rp@2026.1

Who says what

AuthorityKindDate
Ahargaṇa, pac-rpThis rulingSat 9 Mar
Ahargaṇa, classicalDisc centre, no refractionSat 9 Mar
compat-drikpanchangComparison profileSat 9 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 8thCoveredSunrise 9thCoveredRuled
Los Angeles03:03 → 00:2607:13holds07:12no8 Mar
Chicago05:03 → 02:2607:15holds07:13no8 Mar
Jersey City06:03 → 03:2607:20holds07:19no8 Mar
Port of Spain06:03 → 03:2606:18holds06:17no8 Mar
London10:03 → 07:2606:32no06:30holds9 Mar
Durban12:03 → 09:2605:52no05:52holds9 Mar
Dubai14:03 → 11:2606:36no06:35holds9 Mar
Delhi15:33 → 12:5606:40no06:39holds9 Mar
Kolkata15:33 → 12:5605:53no05:52holds9 Mar
Singapore17:33 → 14:5606:43no06:43holds9 Mar
Sydney20:03 → 17:2605:48no05:49holds9 Mar
Suva22:03 → 19:2606:07no06:07holds9 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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