Ruling · Bahulā Caturthī · 2027

Saturday 21 August

Determinatein Baoding, under the Rashtriya Panchang method. Clear of every threshold by 137 minutes.

Decide it for

BaodingDelhiKolkataSingaporeSydneyJersey City

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 20 August

Caturthī is absent from sāyāhna. Not taken.

16:25 sāyāhna beginssunset 19:07
16:0116:2516:4917:1317:3718:0118:2518:4919:1319:37

0 of 162 minutes covered

Late afternoon of Saturday 21 August

Taken. The only late afternoon Caturthī reaches.

16:24 sāyāhna beginssunset 19:05
16:0016:2416:4817:1217:3618:0018:2418:4819:1219:36

162 of 162 minutes covered

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

How it was decided

  1. 01

    Aṅga

    Caturthī runs from 21:24 on Fri 20 Aug to 22:35 on Sat 21 Aug.

    2027-08-20T13:23:55Z → 2027-08-21T14:35:07Z

  2. 02

    Kāla

    Sāyāhna is last 3 of 15 day muhūrtas: 16:25–19:07 on the 20th, 16:24–19:05 on the 21st.

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

  3. 03

    Rule

    Caturthī must be present during sāyāhna. It covers 0 of 162 minutes on the 20th and 162 of 162 on the 21st.

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

  4. 04

    Tie-break

    Only one late afternoon qualifies. No tie-break is needed.

    priority: purvaviddha → only-day · margin 8230 s

  5. 05

    Ruling

    Bahulā Caturthī, Baoding, 2027: Saturday 21 August.

    confidence: determinate

Say it like this

In Baoding, Bahulā Caturthī 2027 falls on Saturday 21 August. Caturthī runs from 21:24 on Fri 20 Aug to 22:35 on Sat 21 Aug and covers all of sāyāhna that late afternoon.

ahargana.org/baoding/festivals/2027/bahula-chaturthi · pac-rp@2026.1

Who says what

AuthorityKindDate
Ahargaṇa, pac-rpThis rulingSat 21 Aug
Ahargaṇa, classicalDisc centre, no refractionSat 21 Aug
compat-drikpanchangComparison profileSat 21 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 20thCoveredSāyāhna 21stCoveredRuled
Los Angeles06:24 → 07:3516:55159 min16:540 min20 Aug
Chicago08:24 → 09:3516:59164 min16:580 min20 Aug
Jersey City09:24 → 10:3517:04163 min17:030 min20 Aug
Port of Spain09:24 → 10:3515:53149 min15:530 min20 Aug
London14:24 → 15:3517:21172 min17:200 min20 Aug
Durban15:24 → 16:3515:20130 min15:2075 min20 Aug
Dubai17:24 → 18:3516:1485 min16:14141 min20 Aug
Delhi18:54 → 20:0516:192 min16:19156 min20 Aug
Kolkata18:54 → 20:0515:310 min15:30154 min21 Aug
Singapore21:24 → 22:3516:470 min16:46146 min21 Aug
Sydney23:24 → 00:3515:170 min15:17132 min21 Aug
Suva01:24 → 02:3515:380 min15:38139 min21 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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