Ruling · Nāga Pañcamī · 2011

Thursday 4 August

Determinatein Daqing, under the Rashtriya Panchang method. Clear of every threshold by 55 minutes.

Decide it for

46°35′ N 125°00′ E · Asia/Shanghai · GeoNames 2037860

The two middays

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

Midday of Wednesday 3 August

Pañcamī is absent from madhyāhna. Not taken.

madhyāhna begins 11:22  12:10 madhyāhna ends
10:3410:5811:2211:4612:1012:3412:58

0 of 48 minutes covered

Midday of Thursday 4 August

Taken. The only midday Pañcamī reaches.

madhyāhna begins 11:22  12:10 madhyāhna ends
10:3410:5811:2211:4612:1012:3412:58

48 of 48 minutes covered

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

How it was decided

  1. 01

    Aṅga

    Pañcamī runs from 15:52 on Wed 3 Aug to 13:05 on Thu 4 Aug.

    2011-08-03T07:52:12Z → 2011-08-04T05:04:35Z

  2. 02

    Kāla

    Madhyāhna is 1 ghaṭikā either side of midday: 11:22–12:10 on the 3rd, 11:22–12:10 on the 4th.

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

  3. 03

    Rule

    Pañcamī must be present during madhyāhna. It covers 0 of 48 minutes on the 3rd and 48 of 48 on the 4th.

    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: paraviddha → only-day · margin 3289 s

  5. 05

    Ruling

    Nāga Pañcamī, Daqing, 2011: Thursday 4 August.

    confidence: determinate

Say it like this

In Daqing, Nāga Pañcamī 2011 falls on Thursday 4 August. Pañcamī runs from 15:52 on Wed 3 Aug to 13:05 on Thu 4 Aug and covers all of madhyāhna that midday.

ahargana.org/daqing/festivals/2011/naga-panchami · pac-rp@2026.1

Who says what

AuthorityKindDate
Ahargaṇa, pac-rpThis rulingThu 4 Aug
Ahargaṇa, classicalDisc centre, no refractionThu 4 Aug
compat-drikpanchangComparison profileThu 4 Aug
No institution has a recorded ruling for Daqing.

Institutional rulings are recorded with a source address, and are never edited to agree.

The rule, as data

/rules/naga-panchami · ruleset 2026.3-draft

Month
Śrāvaṇa, amānta
Pakṣa · aṅga
Śukla · Pañcamī
Kāla
Madhyāhna
Priority
Paraviddhā
Tie-break
Second day
Reference
CRC 1955, p. 103

“S 5 Naga pancami (paraviddha)” Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 103.

The same rule, elsewhere

Twelve places, west to east. Local clock times.

PlacePañcamīMadhyāhna 3rdCoveredMadhyāhna 4thCoveredRuled
Los Angeles00:52 → 22:0512:3548 min12:350 min3 Aug
Chicago02:52 → 00:0512:3248 min12:320 min3 Aug
Jersey City03:52 → 01:0512:3848 min12:380 min3 Aug
Port of Spain03:52 → 01:0511:4848 min11:480 min3 Aug
London08:52 → 06:0512:4248 min12:420 min3 Aug
Durban09:52 → 07:0511:3848 min11:380 min3 Aug
Dubai11:52 → 09:0512:0148 min12:010 min3 Aug
Delhi13:22 → 10:3512:030 min12:030 min4 Aug
Kolkata13:22 → 10:3511:190 min11:190 min4 Aug
Singapore15:52 → 13:0512:470 min12:4718 min4 Aug
Sydney17:52 → 15:0511:380 min11:3848 min4 Aug
Suva19:52 → 17:0511:490 min11:4948 min4 Aug
Profile · tradition
pac-rp@2026.1 · smarta
Rule
naga-panchami@2026.3-draft
Engine · kernel
0.1.0 · de440 7eef…ea74
Boundary margin
300 s

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