Ruling · Govatsa Dvādaśī (Vasu Baras) · 1921

Thursday 27 October

Determinatein Baoding, under the Rashtriya Panchang method. Clear of every threshold by 63 minutes.

Decide it for

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

The two evenings

One ghaṭī is 24 minutes. Pradoṣa is 2 muhūrtas after sunset.

Evening of Thursday 27 October

Taken. The only evening Dvādaśī reaches.

17:25 sunsetpradoṣa ends 19:11
17:0117:2517:4918:1318:3719:0119:25

106 of 106 minutes covered

Evening of Friday 28 October

Dvādaśī is absent from pradoṣa. Not taken.

17:23 sunsetpradoṣa ends 19:10
16:5917:2317:4718:1118:3518:5919:23

0 of 106 minutes covered

Dvādaśī presentPradoṣa, the window the rule readsThe instant the tithi begins or ends

How it was decided

  1. 01

    Aṅga

    Dvādaśī runs from 16:22 on Thu 27 Oct to 13:56 on Fri 28 Oct.

    1921-10-27T08:21:59Z → 1921-10-28T05:55:30Z

  2. 02

    Kāla

    Pradoṣa is 2 muhūrtas after sunset: 17:25–19:11 on the 27th, 17:23–19:10 on the 28th.

    pradosha: night-muhurta-1-2 · sunrise and sunset: upper limb, 31′ + 16′

  3. 03

    Rule

    Dvādaśī must be present during pradoṣa. It covers 106 of 106 minutes on the 27th and 0 of 106 on the 28th.

    Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 104

  4. 04

    Tie-break

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

    priority: purvaviddha → only-day · margin 3757 s

  5. 05

    Ruling

    Govatsa Dvādaśī, Baoding, 1921: Thursday 27 October.

    confidence: determinate

Say it like this

In Baoding, Govatsa Dvādaśī (Vasu Baras) 1921 falls on Thursday 27 October. Dvādaśī runs from 16:22 on Thu 27 Oct to 13:56 on Fri 28 Oct and covers all of pradoṣa that evening.

ahargana.org/baoding/festivals/1921/govatsa-dvadashi · pac-rp@2026.1

Who says what

AuthorityKindDate
Ahargaṇa, pac-rpThis rulingThu 27 Oct
Ahargaṇa, classicalDisc centre, no refractionThu 27 Oct
compat-drikpanchangComparison profileThu 27 Oct
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/govatsa-dvadashi · ruleset 2026.3-draft

Month
Āśvina, amānta
Pakṣa · aṅga
Kṛṣṇa · Dvādaśī
Kāla
Pradoṣa
Priority
Pūrvaviddhā
Tie-break
First day
Reference
CRC 1955, p. 104

“K 12 Govatsa dvadasi (pradosa vyapini). If occurs on two days, it is to be observed on the first day.” Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 104.

The same rule, elsewhere

Twelve places, west to east. Local clock times.

PlaceDvādaśīSunset 27thCoveredSunset 28thCoveredRuled
Los Angeles00:22 → 21:5617:05105 min17:040 min27 Oct
Chicago03:22 → 00:5617:52107 min17:500 min27 Oct
Jersey City03:22 → 00:5616:59107 min16:580 min27 Oct
Port of Spain04:22 → 01:5617:4398 min17:430 min27 Oct
London08:22 → 05:5616:44112 min16:420 min27 Oct
Durban10:22 → 07:5618:1387 min18:140 min27 Oct
Dubai12:22 → 09:5617:42102 min17:410 min27 Oct
Delhi13:52 → 11:2617:40103 min17:400 min27 Oct
Kolkata13:52 → 11:2617:03101 min17:020 min27 Oct
Singapore15:22 → 12:5617:5195 min17:510 min27 Oct
Sydney18:22 → 15:5618:1881 min18:190 min27 Oct
Suva20:22 → 17:5618:110 min18:110 min27 Oct
Profile · tradition
pac-rp@2026.1 · smarta
Rule
govatsa-dvadashi@2026.3-draft
Engine · kernel
0.1.0 · de440 7eef…ea74
Boundary margin
300 s

About Ahargaṇa