Ruling · Govatsa Dvādaśī (Vasu Baras) · 1998

Friday 16 October

Determinatein Baoding, under the Rashtriya Panchang method. Clear of every threshold by 390 minutes.

Decide it for

BaodingDelhiKolkataSingaporeSydneyJersey City

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 16 October

Taken. The only evening Dvādaśī reaches.

17:39 sunsetpradoṣa ends 19:22
17:1517:3918:0318:2718:5119:1519:39

103 of 103 minutes covered

Evening of Saturday 17 October

Dvādaśī is absent from pradoṣa. Not taken.

17:38 sunsetpradoṣa ends 19:21
17:1417:3818:0218:2618:5019:1419:38

0 of 103 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 09:18 on Fri 16 Oct to 11:08 on Sat 17 Oct.

    1998-10-16T01:17:32Z → 1998-10-17T03:07:48Z

  2. 02

    Kāla

    Pradoṣa is 2 muhūrtas after sunset: 17:39–19:22 on the 16th, 17:38–19:21 on the 17th.

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

  3. 03

    Rule

    Dvādaśī must be present during pradoṣa. It covers 103 of 103 minutes on the 16th and 0 of 103 on the 17th.

    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 23383 s

  5. 05

    Ruling

    Govatsa Dvādaśī, Baoding, 1998: Friday 16 October.

    confidence: determinate

Say it like this

In Baoding, Govatsa Dvādaśī (Vasu Baras) 1998 falls on Friday 16 October. Dvādaśī runs from 09:18 on Fri 16 Oct to 11:08 on Sat 17 Oct and covers all of pradoṣa that evening.

ahargana.org/baoding/festivals/1998/govatsa-dvadashi · pac-rp@2026.1

Who says what

AuthorityKindDate
Ahargaṇa, pac-rpThis rulingFri 16 Oct
Ahargaṇa, classicalDisc centre, no refractionFri 16 Oct
compat-drikpanchangComparison profileFri 16 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 16thCoveredSunset 17thCoveredRuled
Los Angeles18:18 → 20:0818:17102 min18:160 min15 Oct
Chicago20:18 → 22:0818:07104 min18:060 min16 Oct
Jersey City21:18 → 23:0818:14103 min18:130 min16 Oct
Port of Spain21:18 → 23:0817:4897 min17:470 min16 Oct
London02:18 → 04:0818:05107 min18:030 min16 Oct
Durban03:18 → 05:0818:0689 min18:070 min16 Oct
Dubai05:18 → 07:0817:51100 min17:500 min16 Oct
Delhi06:48 → 08:3817:51100 min17:500 min16 Oct
Kolkata06:48 → 08:3817:1199 min17:100 min16 Oct
Singapore09:18 → 11:0818:5395 min18:520 min16 Oct
Sydney11:18 → 13:0818:0989 min18:090 min16 Oct
Suva13:18 → 15:0818:0792 min18:070 min16 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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