Ruling · Govatsa Dvādaśī (Vasu Baras) · 1902

Monday 27 October

Determinatein Baoding, under the Rashtriya Panchang method. Clear of every threshold by 168 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 Monday 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 Tuesday 28 October

Dvādaśī is absent from pradoṣa. Not taken.

17:24 sunsetpradoṣa ends 19:10
17:0017:2417:4818:1218:3619:0019:24

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 14:37 on Mon 27 Oct to 14:21 on Tue 28 Oct.

    1902-10-27T06:37:26Z → 1902-10-28T06:21:04Z

  2. 02

    Kāla

    Pradoṣa is 2 muhūrtas after sunset: 17:25–19:11 on the 27th, 17:24–19:10 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 10059 s

  5. 05

    Ruling

    Govatsa Dvādaśī, Baoding, 1902: Monday 27 October.

    confidence: determinate

Say it like this

In Baoding, Govatsa Dvādaśī (Vasu Baras) 1902 falls on Monday 27 October. Dvādaśī runs from 14:37 on Mon 27 Oct to 14:21 on Tue 28 Oct and covers all of pradoṣa that evening.

ahargana.org/baoding/festivals/1902/govatsa-dvadashi · pac-rp@2026.1

Who says what

AuthorityKindDate
Ahargaṇa, pac-rpThis rulingMon 27 Oct
Ahargaṇa, classicalDisc centre, no refractionMon 27 Oct
compat-drikpanchangComparison profileMon 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 Angeles22:37 → 22:2117:06104 min17:050 min27 Oct
Chicago00:37 → 00:2116:52107 min16:510 min27 Oct
Jersey City01:37 → 01:2117:00107 min16:580 min27 Oct
Port of Spain02:37 → 02:2117:4498 min17:430 min27 Oct
London06:37 → 06:2116:44112 min16:420 min27 Oct
Durban08:07 → 07:5117:4387 min17:440 min27 Oct
Dubai10:18 → 10:0217:23101 min17:230 min27 Oct
Delhi11:58 → 11:4217:32103 min17:310 min27 Oct
Kolkata11:58 → 11:4216:54101 min16:530 min27 Oct
Singapore13:32 → 13:1617:4695 min17:460 min27 Oct
Sydney16:37 → 16:2118:1786 min18:180 min27 Oct
Suva18:32 → 18:1618:0564 min18:0610 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

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