Ruling · Govatsa Dvādaśī (Vasu Baras) · 1981

Saturday 24 October

Determinatein Baoding, under the Rashtriya Panchang method. Clear of every threshold by 212 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 Friday 23 October

Dvādaśī is absent from pradoṣa. Not taken.

17:29 sunsetpradoṣa ends 19:14
17:0517:2917:5318:1718:4119:0519:29

0 of 105 minutes covered

Evening of Saturday 24 October

Taken. The only evening Dvādaśī reaches.

17:28 sunsetpradoṣa ends 19:13
17:0417:2817:5218:1618:4019:0419:28

105 of 105 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 22:47 on Fri 23 Oct to 23:35 on Sat 24 Oct.

    1981-10-23T14:46:33Z → 1981-10-24T15:35:17Z

  2. 02

    Kāla

    Pradoṣa is 2 muhūrtas after sunset: 17:29–19:14 on the 23rd, 17:28–19:13 on the 24th.

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

  3. 03

    Rule

    Dvādaśī must be present during pradoṣa. It covers 0 of 105 minutes on the 23rd and 105 of 105 on the 24th.

    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 12746 s

  5. 05

    Ruling

    Govatsa Dvādaśī, Baoding, 1981: Saturday 24 October.

    confidence: determinate

Say it like this

In Baoding, Govatsa Dvādaśī (Vasu Baras) 1981 falls on Saturday 24 October. Dvādaśī runs from 22:47 on Fri 23 Oct to 23:35 on Sat 24 Oct and covers all of pradoṣa that evening.

ahargana.org/baoding/festivals/1981/govatsa-dvadashi · pac-rp@2026.1

Who says what

AuthorityKindDate
Ahargaṇa, pac-rpThis rulingSat 24 Oct
Ahargaṇa, classicalDisc centre, no refractionSat 24 Oct
compat-drikpanchangComparison profileSat 24 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 23rdCoveredSunset 24thCoveredRuled
Los Angeles07:47 → 08:3518:09104 min18:080 min23 Oct
Chicago09:47 → 10:3517:57106 min17:550 min23 Oct
Jersey City10:47 → 11:3518:04106 min18:030 min23 Oct
Port of Spain10:47 → 11:3517:4598 min17:440 min23 Oct
London15:47 → 16:3517:51111 min17:490 min23 Oct
Durban16:47 → 17:3518:1188 min18:120 min23 Oct
Dubai18:47 → 19:3517:4539 min17:44101 min23 Oct
Delhi20:17 → 21:0517:440 min17:43102 min24 Oct
Kolkata20:17 → 21:0517:050 min17:04100 min24 Oct
Singapore22:17 → 23:0518:210 min18:2195 min24 Oct
Sydney00:47 → 01:3518:150 min18:1586 min24 Oct
Suva02:47 → 03:3518:090 min18:1091 min24 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

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