March 1958 · each Moon as it stands at sunrisePhālguna Śukla to Caitra ŚuklaThe month ›

Ruling · 1958 · Datong

Vasantotsava

Thursday 6 March1958 · Datong, Shanxi, China

Determinatemargin 267 min

In Datong, under the Rashtriya Panchang method. Clear of every threshold by 267 minutes.

Decide it forDatongDelhiKolkataSingaporeSydneyJersey City40°06′ N 113°17′ E · Asia/Shanghai · GeoNames 2037799

The two sunrises सूर्योदय

One ghaṭī is 24 minutes

The sunrise is read as upper limb, 31′ + 16′.

Sunrise of Thursday 6 March

Taken. The only sunrise Pratipadā holds at.

06:54 sunrise
05:4206:0606:3006:5407:1807:4208:06

Holds at sunrise

Sunrise of Friday 7 March

Pratipadā does not hold at sunrise. Not taken.

06:53 sunrise
05:4106:0506:2906:5307:1707:4108:05

Absent at sunrise

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

How it was decided निर्णय

  1. Step 1, Aṅga

    Pratipadā runs from 02:28 on Thu 6 Mar to 22:41 on Thu 6 Mar.

    1958-03-05T18:27:55Z → 1958-03-06T14:41:05Z
  2. Step 2, Kāla

    Sunrise is at 06:54 on the 6th and 06:53 on the 7th.

    sunrise: upper limb, 31′ + 16′
  3. Step 3, Rule

    Pratipadā must be current at sunrise. It is on the 6th and is not on the 7th.

    Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 105
  4. Step 4, Tie-break

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

    priority: purvaviddha → only-day · margin 15992 s
  5. Step 5, Ruling

    Vasantotsava, Datong, 1958: Thursday 6 March.

    confidence: determinate

Say it like this

In Datong, Vasantotsava 1958 falls on Thursday 6 March. Pratipadā runs from 02:28 on Thu 6 Mar to 22:41 on Thu 6 Mar and is current at sunrise that day.

ahargana.org/datong/festivals/1958/vasantotsavapac-rp@2026.1

Who says what

never edited to agree

AuthorityKindDate
Ahargaṇa, pac-rpThis rulingThu 6 Mar
Ahargaṇa, classicalDisc centre, no refractionThu 6 Mar
compat-drikpanchangComparison profileThu 6 Mar
No institution has a recorded ruling for Datong.

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 clocks

PlacePratipadāSunrise 5thCoveredSunrise 6thCoveredRuled
Los Angeles10:28 → 06:4106:17no06:16holds6 Mar
Chicago12:28 → 08:4106:20no06:18holds6 Mar
Jersey City13:28 → 09:4106:25no06:24holds6 Mar
Port of Spain14:28 → 10:4106:19no06:19holds6 Mar
London18:28 → 14:4106:39no06:36holds6 Mar
Durban20:28 → 16:4105:50no05:50holds6 Mar
Dubai22:28 → 18:4106:39no06:38holds6 Mar
Delhi23:58 → 20:1106:43no06:42holds6 Mar
Kolkata23:58 → 20:1105:55no05:55holds6 Mar
Singapore01:58 → 22:1106:44no06:44holds6 Mar
Sydney04:28 → 00:4105:46no05:47holds6 Mar
Suva06:28 → 02:4106:06no06:07no6 Mar
This ruling as JSON · ICS
Profile · tradition
pac-rp@2026.1 · smarta
Rule
vasantotsava@2026.3-draft
Engine · kernel
0.1.0 · de440 7eef…ea74
Boundary margin
300 s