Ruling · Nāga Caturthī · 2098

Tuesday 28 October

Determinatein Baoding, under the Rashtriya Panchang method. Clear of every threshold by 171 minutes.

Decide it for

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 Monday 27 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 Tuesday 28 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 15:17 on Mon 27 Oct to 15:22 on Tue 28 Oct.

    2098-10-27T07:16:54Z → 2098-10-28T07:22:01Z

  2. 02

    Kāla

    Madhyāhna is 1 ghaṭikā either side of midday: 11:38–12:26 on the 27th, 11:38–12:26 on the 28th.

    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 27th and 48 of 48 on the 28th.

    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 10249 s

  5. 05

    Ruling

    Nāga Caturthī, Baoding, 2098: Tuesday 28 October.

    confidence: determinate

Say it like this

In Baoding, Nāga Caturthī 2098 falls on Tuesday 28 October. Caturthī runs from 15:17 on Mon 27 Oct to 15:22 on Tue 28 Oct and covers all of madhyāhna that midday.

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

Who says what

AuthorityKindDate
Ahargaṇa, pac-rpThis rulingTue 28 Oct
Ahargaṇa, classicalDisc centre, no refractionTue 28 Oct
compat-drikpanchangComparison profileTue 28 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 27thCoveredMadhyāhna 28thCoveredRuled
Los Angeles00:17 → 00:2212:1348 min12:130 min27 Oct
Chicago02:17 → 02:2212:1048 min12:100 min27 Oct
Jersey City03:17 → 03:2212:1648 min12:160 min27 Oct
Port of Spain03:17 → 03:2211:2648 min11:260 min27 Oct
London07:17 → 07:2211:2048 min11:200 min27 Oct
Durban09:17 → 09:2211:1648 min11:160 min27 Oct
Dubai11:17 → 11:2211:3948 min11:390 min27 Oct
Delhi12:47 → 12:5211:410 min11:4148 min28 Oct
Kolkata12:47 → 12:5210:570 min10:5748 min28 Oct
Singapore15:17 → 15:2212:250 min12:2548 min28 Oct
Sydney18:17 → 18:2212:160 min12:1648 min28 Oct
Suva19:17 → 19:2211:270 min11:2748 min28 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