Ruling · Nāga Caturthī · 1968

Friday 25 October

Determinatein Baoding, under the Rashtriya Panchang method. Clear of every threshold by 267 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 October

Caturthī is absent from madhyāhna. Not taken.

madhyāhna begins 11:38  12:26 madhyāhna ends
10:5011:1411:3812:0212:2612:5013:14

0 of 48 minutes covered

Midday of Friday 25 October

Taken. The only midday Caturthī reaches.

madhyāhna begins 11:38  12:26 madhyāhna ends
10:5011:1411:3812:0212:2612:5013:14

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 20:03 on Thu 24 Oct to 16:53 on Fri 25 Oct.

    1968-10-24T12:02:32Z → 1968-10-25T08:52:36Z

  2. 02

    Kāla

    Madhyāhna is 1 ghaṭikā either side of midday: 11:38–12:26 on the 24th, 11:38–12:26 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. 104

  4. 04

    Tie-break

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

    priority: paraviddha → only-day · margin 15995 s

  5. 05

    Ruling

    Nāga Caturthī, Baoding, 1968: Friday 25 October.

    confidence: determinate

Say it like this

In Baoding, Nāga Caturthī 1968 falls on Friday 25 October. Caturthī runs from 20:03 on Thu 24 Oct to 16:53 on Fri 25 Oct and covers all of madhyāhna that midday.

ahargana.org/baoding/festivals/1968/naga-chaturthi · pac-rp@2026.1

Who says what

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

Month
Kārtika, amānta
Pakṣa · aṅga
Śukla · Caturthī
Kāla
Madhyāhna
Priority
Paraviddhā
Tie-break
Second day
Reference
CRC 1955, p. 104

“S 4 Naga caturthi (paraviddha and madhyahnavyapini).” Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 104.

The same rule, elsewhere

Twelve places, west to east. Local clock times.

PlaceCaturthīMadhyāhna 24thCoveredMadhyāhna 25thCoveredRuled
Los Angeles05:03 → 01:5312:1348 min12:130 min24 Oct
Chicago07:03 → 03:5312:1048 min12:100 min24 Oct
Jersey City08:03 → 04:5312:1648 min12:160 min24 Oct
Port of Spain08:03 → 04:5311:2648 min11:260 min24 Oct
London13:03 → 09:5312:206 min12:200 min24 Oct
Durban14:03 → 10:5311:160 min11:160 min25 Oct
Dubai16:03 → 12:5311:390 min11:3948 min25 Oct
Delhi17:33 → 14:2311:410 min11:4148 min25 Oct
Kolkata17:33 → 14:2310:570 min10:5748 min25 Oct
Singapore19:33 → 16:2311:550 min11:5548 min25 Oct
Sydney22:03 → 18:5311:160 min11:1648 min25 Oct
Suva00:03 → 20:5311:270 min11:2748 min25 Oct
Profile · tradition
pac-rp@2026.1 · smarta
Rule
naga-chaturthi@2026.3-draft
Engine · kernel
0.1.0 · de440 7eef…ea74
Boundary margin
300 s

About Ahargaṇa