Ruling · Bahulā Caturthī · 2098

Friday 15 August

Determinatein Baoding, under the Rashtriya Panchang method. Clear of every threshold by 10 minutes.

Decide it for

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

The two late afternoons

One ghaṭī is 24 minutes. Sāyāhna is last 3 of 15 day muhūrtas.

Late afternoon of Friday 15 August

Taken. Both late afternoons qualify; the rule takes the first.

16:29 sāyāhna beginssunset 19:13
Caturthī begins 16:39:14
16:0516:2916:5317:1717:4118:0518:2918:5319:1719:41

154 of 164 minutes covered, the last 154

Late afternoon of Saturday 16 August

Qualifies with 122 of 164 minutes. Not taken.

16:28 sāyāhna beginssunset 19:12
Caturthī ends 18:29:39
16:0416:2816:5217:1617:4018:0418:2818:5219:1619:40

122 of 164 minutes covered, the first 122

Caturthī presentSāyāhna, the window the rule readsThe instant the tithi begins or ends

How it was decided

  1. 01

    Aṅga

    Caturthī runs from 16:39 on Fri 15 Aug to 18:30 on Sat 16 Aug.

    2098-08-15T08:39:14Z → 2098-08-16T10:29:39Z

  2. 02

    Kāla

    Sāyāhna is last 3 of 15 day muhūrtas: 16:29–19:13 on the 15th, 16:28–19:12 on the 16th.

    sayahna: day-muhurta-13-15 · sunrise and sunset: upper limb, 31′ + 16′

  3. 03

    Rule

    Caturthī must be present during sāyāhna. It covers 154 of 164 minutes on the 15th and 122 of 164 on the 16th.

    Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 103

  4. 04

    Tie-break

    Both late afternoons qualify. Pūrvaviddhā: the first is taken.

    priority: purvaviddha → purvaviddha · margin 626 s

  5. 05

    Ruling

    Bahulā Caturthī, Baoding, 2098: Friday 15 August.

    confidence: determinate

Say it like this

In Baoding, Bahulā Caturthī 2098 falls on Friday 15 August. Caturthī runs from 16:39 on Fri 15 Aug to 18:30 on Sat 16 Aug and covers 154 of 164 minutes of sāyāhna that late afternoon. It also reaches the next late afternoon for 122 minutes; by the rule the first late afternoon is taken.

ahargana.org/baoding/festivals/2098/bahula-chaturthi · pac-rp@2026.1

Who says what

AuthorityKindDate
Ahargaṇa, pac-rpThis rulingFri 15 Aug
Ahargaṇa, classicalDisc centre, no refractionFri 15 Aug
compat-drikpanchangComparison profileFri 15 Aug
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/bahula-chaturthi · ruleset 2026.3-draft

Month
Śrāvaṇa, amānta
Pakṣa · aṅga
Kṛṣṇa · Caturthī
Kāla
Sāyāhna
Priority
Pūrvaviddhā
Tie-break
First day
Reference
CRC 1955, p. 103

“K 4 Bahula caturthi (Madhyadesa) (Sayahnavyapini: if occurs on two successive days, it is to be observed on the 1st day).” Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 103.

The same rule, elsewhere

Twelve places, west to east. Local clock times.

PlaceCaturthīSāyāhna 15thCoveredSāyāhna 16thCoveredRuled
Los Angeles01:39 → 03:3016:59161 min16:580 min15 Aug
Chicago03:39 → 05:3017:04166 min17:030 min15 Aug
Jersey City04:39 → 06:3017:08165 min17:080 min15 Aug
Port of Spain04:39 → 06:3015:55150 min15:550 min15 Aug
London09:39 → 11:3017:27175 min17:260 min15 Aug
Durban10:39 → 12:3015:20133 min15:200 min15 Aug
Dubai12:39 → 14:3016:17156 min16:170 min15 Aug
Delhi14:09 → 16:0016:23158 min16:220 min15 Aug
Kolkata14:09 → 16:0015:33155 min15:3327 min15 Aug
Singapore16:39 → 18:3016:48146 min16:48102 min15 Aug
Sydney18:39 → 20:3015:160 min15:16131 min16 Aug
Suva20:39 → 22:3015:380 min15:38138 min16 Aug
Profile · tradition
pac-rp@2026.1 · smarta
Rule
bahula-chaturthi@2026.3-draft
Engine · kernel
0.1.0 · de440 7eef…ea74
Boundary margin
300 s

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