Ruling · Tila Caturthī · 2016

Thursday 11 February

Determinatein Baoding, under the Rashtriya Panchang method. Clear of every threshold by 196 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 Thursday 11 February

Taken. The only evening Caturthī reaches.

17:50 sunsetpradoṣa ends 19:37
17:2617:5018:1418:3819:0219:2619:50

107 of 107 minutes covered

Evening of Friday 12 February

Caturthī is absent from pradoṣa. Not taken.

17:51 sunsetpradoṣa ends 19:38
17:2717:5118:1518:3919:0319:2719:51

0 of 107 minutes covered

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

How it was decided

  1. 01

    Aṅga

    Caturthī runs from 14:33 on Thu 11 Feb to 11:47 on Fri 12 Feb.

    2016-02-11T06:33:14Z → 2016-02-12T03:47:10Z

  2. 02

    Kāla

    Pradoṣa is 2 muhūrtas after sunset: 17:50–19:37 on the 11th, 17:51–19:38 on the 12th.

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

  3. 03

    Rule

    Caturthī must be present during pradoṣa. It covers 107 of 107 minutes on the 11th and 0 of 107 on the 12th.

    Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 105

  4. 04

    Tie-break

    Only one evening qualifies. No tie-break is needed.

    priority: unstated → only-day · margin 11789 s

  5. 05

    Ruling

    Tila Caturthī, Baoding, 2016: Thursday 11 February.

    confidence: determinate

Say it like this

In Baoding, Tila Caturthī 2016 falls on Thursday 11 February. Caturthī runs from 14:33 on Thu 11 Feb to 11:47 on Fri 12 Feb and covers all of pradoṣa that evening.

ahargana.org/baoding/festivals/2016/tila-chaturthi · pac-rp@2026.1

Who says what

AuthorityKindDate
Ahargaṇa, pac-rpThis rulingThu 11 Feb
Ahargaṇa, classicalDisc centre, no refractionThu 11 Feb
compat-drikpanchangComparison profileThu 11 Feb
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/tila-chaturthi · ruleset 2026.3-draft

Month
Māgha, amānta
Pakṣa · aṅga
Śukla · Caturthī
Kāla
Pradoṣa
Priority
Unstated
Tie-break
Longer coverage, as a boundary
Reference
CRC 1955, p. 105

“S 4 Tila caturthi and Kunda caturthi (pradosavyapini), Varada caturthi (Bengal & Orissa), Ganesa caturthi, Ganesa jayanti (madhyahnavyapini purvaviddha).” Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 105.

The same rule, elsewhere

Twelve places, west to east. Local clock times.

PlaceCaturthīSunset 11thCoveredSunset 12thCoveredRuled
Los Angeles22:33 → 19:4717:33105 min17:330 min11 Feb
Chicago00:33 → 21:4717:18108 min17:190 min11 Feb
Jersey City01:33 → 22:4717:25108 min17:270 min11 Feb
Port of Spain02:33 → 23:4718:1398 min18:130 min11 Feb
London06:33 → 03:4717:07114 min17:090 min11 Feb
Durban08:33 → 05:4718:4786 min18:460 min11 Feb
Dubai10:33 → 07:4718:10102 min18:100 min11 Feb
Delhi12:03 → 09:1718:07103 min18:080 min11 Feb
Kolkata12:03 → 09:1717:30101 min17:310 min11 Feb
Singapore14:33 → 11:4719:2195 min19:210 min11 Feb
Sydney17:33 → 14:4719:5285 min19:510 min11 Feb
Suva18:33 → 15:4718:4390 min18:420 min11 Feb
Profile · tradition
pac-rp@2026.1 · smarta
Rule
tila-chaturthi@2026.3-draft
Engine · kernel
0.1.0 · de440 7eef…ea74
Boundary margin
300 s

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