Ruling · Govatsa Dvādaśī (Vasu Baras) · 2098

Tuesday 21 October

Determinatein Baoding, under the Rashtriya Panchang method. Clear of every threshold by 405 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 20 October

Dvādaśī is absent from pradoṣa. Not taken.

17:33 sunsetpradoṣa ends 19:17
17:0917:3317:5718:2118:4519:0919:33

0 of 104 minutes covered

Evening of Tuesday 21 October

Taken. The only evening Dvādaśī reaches.

17:31 sunsetpradoṣa ends 19:16
17:0717:3117:5518:1918:4319:0719:31

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 04:39 on Tue 21 Oct to 02:01 on Wed 22 Oct.

    2098-10-20T20:38:58Z → 2098-10-21T18:00:33Z

  2. 02

    Kāla

    Pradoṣa is 2 muhūrtas after sunset: 17:33–19:17 on the 20th, 17:31–19:16 on the 21st.

    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 104 minutes on the 20th and 105 of 105 on the 21st.

    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 24284 s

  5. 05

    Ruling

    Govatsa Dvādaśī, Baoding, 2098: Tuesday 21 October.

    confidence: determinate

Say it like this

In Baoding, Govatsa Dvādaśī (Vasu Baras) 2098 falls on Tuesday 21 October. Dvādaśī runs from 04:39 on Tue 21 Oct to 02:01 on Wed 22 Oct and covers all of pradoṣa that evening.

ahargana.org/baoding/festivals/2098/govatsa-dvadashi · pac-rp@2026.1

Who says what

AuthorityKindDate
Ahargaṇa, pac-rpThis rulingTue 21 Oct
Ahargaṇa, classicalDisc centre, no refractionTue 21 Oct
compat-drikpanchangComparison profileTue 21 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 20thCoveredSunset 21stCoveredRuled
Los Angeles13:39 → 11:0118:12103 min18:110 min20 Oct
Chicago15:39 → 13:0118:01105 min17:590 min20 Oct
Jersey City16:39 → 14:0118:08105 min18:060 min20 Oct
Port of Spain16:39 → 14:0117:4697 min17:460 min20 Oct
London21:39 → 19:0117:560 min17:5467 min21 Oct
Durban22:39 → 20:0118:090 min18:1088 min21 Oct
Dubai00:39 → 22:0117:470 min17:46101 min21 Oct
Delhi02:09 → 23:3117:460 min17:45102 min21 Oct
Kolkata02:09 → 23:3117:070 min17:06100 min21 Oct
Singapore04:39 → 02:0118:520 min18:5295 min21 Oct
Sydney07:39 → 05:0119:130 min19:1487 min21 Oct
Suva08:39 → 06:0118:090 min18:0991 min21 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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