Ruling · Gaṇeśa Caturthī · 2017

Friday 25 August

Determinatein Baoding, under the Rashtriya Panchang method. Clear of every threshold by 613 minutes.

Decide it for

BaodingDelhiKolkataSingaporeSydneyJersey City

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

The two middays

One ghaṭī is 24 minutes. Madhyāhna is 1 ghaṭikā either side of midday.

Midday of Thursday 24 August

Caturthī is absent from madhyāhna. Not taken.

madhyāhna begins 11:56  12:44 madhyāhna ends
11:0811:3211:5612:2012:4413:0813:32

0 of 48 minutes covered

Midday of Friday 25 August

Taken. The only midday Caturthī reaches.

madhyāhna begins 11:56  12:44 madhyāhna ends
11:0811:3211:5612:2012:4413:0813:32

48 of 48 minutes covered

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

How it was decided

  1. 01

    Aṅga

    Caturthī runs from 22:57 on Thu 24 Aug to 23:02 on Fri 25 Aug.

    2017-08-24T14:57:05Z → 2017-08-25T15:01:49Z

  2. 02

    Kāla

    Madhyāhna is 1 ghaṭikā either side of midday: 11:56–12:44 on the 24th, 11:56–12:44 on the 25th.

    madhyahna: midday-pm-1-ghatika · sunrise and sunset: upper limb, 31′ + 16′

  3. 03

    Rule

    Caturthī must be present during madhyāhna. It covers 0 of 48 minutes on the 24th and 48 of 48 on the 25th.

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

  4. 04

    Tie-break

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

    priority: purvaviddha → only-day · margin 36772 s

  5. 05

    Ruling

    Gaṇeśa Caturthī, Baoding, 2017: Friday 25 August.

    confidence: determinate

Say it like this

In Baoding, Gaṇeśa Caturthī 2017 falls on Friday 25 August. Caturthī runs from 22:57 on Thu 24 Aug to 23:02 on Fri 25 Aug and covers all of madhyāhna that midday.

ahargana.org/baoding/festivals/2017/ganesha-chaturthi · pac-rp@2026.1

Who says what

AuthorityKindDate
Ahargaṇa, pac-rpThis rulingFri 25 Aug
Ahargaṇa, classicalDisc centre, no refractionFri 25 Aug
compat-drikpanchangComparison profileFri 25 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/ganesha-chaturthi · ruleset 2026.3-draft

Month
Bhādrapada, amānta
Pakṣa · aṅga
Śukla · Caturthī
Kāla
Madhyāhna
Priority
Pūrvaviddhā
Tie-break
First day
Reference
CRC 1955, p. 103

“S 4 Varada caturthi (purvaviddha, madhyahnavyapini), Samvatsari parva (Jain-caturthi paksa), Saubhagya caturthi (Bengal), Ganesa caturthi (madhyahna vyapini and purvaviddha)” Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 103.

The same rule, elsewhere

Twelve places, west to east. Local clock times.

PlaceCaturthīMadhyāhna 24thCoveredMadhyāhna 25thCoveredRuled
Los Angeles07:57 → 08:0212:3148 min12:310 min24 Aug
Chicago09:57 → 10:0212:2848 min12:280 min24 Aug
Jersey City10:57 → 11:0212:3448 min12:340 min24 Aug
Port of Spain10:57 → 11:0211:4448 min11:440 min24 Aug
London15:57 → 16:0212:380 min12:3848 min25 Aug
Durban16:57 → 17:0211:340 min11:3448 min25 Aug
Dubai18:57 → 19:0211:570 min11:5748 min25 Aug
Delhi20:27 → 20:3211:590 min11:5948 min25 Aug
Kolkata20:27 → 20:3211:150 min11:1448 min25 Aug
Singapore22:57 → 23:0212:430 min12:4348 min25 Aug
Sydney00:57 → 01:0211:340 min11:3448 min25 Aug
Suva02:57 → 03:0211:450 min11:4548 min25 Aug
Profile · tradition
pac-rp@2026.1 · smarta
Rule
ganesha-chaturthi@2026.3-draft
Engine · kernel
0.1.0 · de440 7eef…ea74
Boundary margin
300 s

About Ahargaṇa