Ruling · Vasantotsava · 2042

Friday 7 March

Boundaryin Baoding, under the Rashtriya Panchang method. A threshold is only 2 min 42 s away. Say “contested”.

Decide it for

38°52′ N 115°28′ E · Asia/Shanghai · GeoNames 1816971

The two sunrises

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

Sunrise of Friday 7 March

Taken. Both sunrises qualify; the rule takes the first.

06:42 sunrise
05:3005:5406:1806:4207:0607:3007:54

Holds at sunrise

Sunrise of Saturday 8 March

Pratipadā holds at sunrise here too. Not taken.

06:41 sunrise
Pratipadā ends 06:43:40
05:2905:5306:1706:4107:0507:2907:53

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 04:10 on Fri 7 Mar to 06:44 on Sat 8 Mar.

    2042-03-06T20:10:00Z → 2042-03-07T22:43:40Z

  2. 02

    Kāla

    Sunrise is at 06:42 on the 7th and 06:41 on the 8th.

    sunrise: upper limb, 31′ + 16′

  3. 03

    Rule

    Pratipadā must be current at sunrise. It is on the 7th and is on the 8th.

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

  4. 04

    Tie-break

    Both sunrises qualify. Pūrvaviddhā: the first is taken.

    priority: purvaviddha → purvaviddha · margin 162 s < 300 s

  5. 05

    Ruling

    Vasantotsava, Baoding, 2042: Friday 7 March.

    confidence: boundary (margin)

Say it like this

In Baoding, Vasantotsava 2042 falls on Friday 7 March. Pratipadā runs from 04:10 on Fri 7 Mar to 06:44 on Sat 8 Mar and is current at sunrise that day. It is 2 min 42 s from a threshold: treat the date as contested.

ahargana.org/baoding/festivals/2042/vasantotsava · pac-rp@2026.1

Who says what

AuthorityKindDate
Ahargaṇa, pac-rpThis rulingFri 7 Mar
Ahargaṇa, classicalDisc centre, no refractionFri 7 Mar
compat-drikpanchangComparison profileFri 7 Mar
No institution has a recorded ruling for Baoding.

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 6thCoveredSunrise 7thCoveredRuled
Los Angeles12:10 → 14:4406:15no06:14holds7 Mar
Chicago14:10 → 16:4406:17no06:16holds7 Mar
Jersey City15:10 → 17:4406:22no06:21holds7 Mar
Port of Spain16:10 → 18:4406:18no06:18holds7 Mar
London20:10 → 22:4406:35no06:33holds7 Mar
Durban22:10 → 00:4405:51no05:51holds7 Mar
Dubai00:10 → 02:4406:37no06:36holds7 Mar
Delhi01:40 → 04:1406:41no06:40holds7 Mar
Kolkata01:40 → 04:1405:54no05:53holds7 Mar
Singapore04:10 → 06:4407:13no07:13holds7 Mar
Sydney07:10 → 09:4406:47no06:48no8 Mar
Suva08:10 → 10:4406:07no06:07no8 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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