Ruling · Vasantotsava · 1927

Saturday 19 March

Determinatein Daqing, under the Rashtriya Panchang method. Clear of every threshold by 535 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 Saturday 19 March

Taken. The only sunrise Pratipadā holds at.

05:48 sunrise
04:3605:0005:2405:4806:1206:3607:00

Holds at sunrise

Sunrise of Sunday 20 March

Pratipadā does not hold at sunrise. Not taken.

05:46 sunrise
04:3404:5805:2205:4606:1006:3406:58

Absent 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 18:24 on Fri 18 Mar to 20:52 on Sat 19 Mar.

    1927-03-18T10:24:01Z → 1927-03-19T12:51:36Z

  2. 02

    Kāla

    Sunrise is at 05:48 on the 19th and 05:46 on the 20th.

    sunrise: upper limb, 31′ + 16′

  3. 03

    Rule

    Pratipadā must be current at sunrise. It is on the 19th and is not on the 20th.

    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 32083 s

  5. 05

    Ruling

    Vasantotsava, Daqing, 1927: Saturday 19 March.

    confidence: determinate

Say it like this

In Daqing, Vasantotsava 1927 falls on Saturday 19 March. Pratipadā runs from 18:24 on Fri 18 Mar to 20:52 on Sat 19 Mar and is current at sunrise that day.

ahargana.org/daqing/festivals/1927/vasantotsava · pac-rp@2026.1

Who says what

AuthorityKindDate
Ahargaṇa, pac-rpThis rulingSat 19 Mar
Ahargaṇa, classicalDisc centre, no refractionSat 19 Mar
compat-drikpanchangComparison profileSat 19 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 18thCoveredSunrise 19thCoveredRuled
Los Angeles02:24 → 04:5206:01holds05:59no18 Mar
Chicago04:24 → 06:5205:59holds05:58holds18 Mar
Jersey City05:24 → 07:5206:05holds06:03holds18 Mar
Port of Spain06:24 → 08:5206:12no06:12holds19 Mar
London10:24 → 12:5206:11no06:08holds19 Mar
Durban12:24 → 14:5205:58no05:58holds19 Mar
Dubai14:24 → 16:5206:26no06:25holds19 Mar
Delhi15:54 → 18:2206:29no06:28holds19 Mar
Kolkata15:54 → 18:2205:44no05:43holds19 Mar
Singapore17:24 → 19:5206:10no06:10holds19 Mar
Sydney20:24 → 22:5205:56no05:57holds19 Mar
Suva22:24 → 00:5206:10no06:10holds19 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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