Ruling · Nāga Pañcamī · 1981

Tuesday 4 August

Determinatein Daqing, under the Rashtriya Panchang method. Clear of every threshold by 43 minutes.

Decide it for

DaqingDelhiKolkataSingaporeSydneyJersey City

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 Tuesday 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

Midday of Wednesday 5 August

Pañcamī is absent from madhyāhna. Not taken.

madhyāhna begins 11:22  12:10 madhyāhna ends
Pañcamī ends 10:38:40
10:3410:5811:2211:4612:1012:3412:58

0 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 09:37 on Tue 4 Aug to 10:39 on Wed 5 Aug.

    1981-08-04T01:37:25Z → 1981-08-05T02:38:41Z

  2. 02

    Kāla

    Madhyāhna is 1 ghaṭikā either side of midday: 11:22–12:10 on the 4th, 11:22–12:10 on the 5th.

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

  3. 03

    Rule

    Pañcamī must be present during madhyāhna. It covers 48 of 48 minutes on the 4th and 0 of 48 on the 5th.

    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 2572 s

  5. 05

    Ruling

    Nāga Pañcamī, Daqing, 1981: Tuesday 4 August.

    confidence: determinate

Say it like this

In Daqing, Nāga Pañcamī 1981 falls on Tuesday 4 August. Pañcamī runs from 09:37 on Tue 4 Aug to 10:39 on Wed 5 Aug and covers all of madhyāhna that midday.

ahargana.org/daqing/festivals/1981/naga-panchami · pac-rp@2026.1

Who says what

AuthorityKindDate
Ahargaṇa, pac-rpThis rulingTue 4 Aug
Ahargaṇa, classicalDisc centre, no refractionTue 4 Aug
compat-drikpanchangComparison profileWed 5 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 4thCoveredMadhyāhna 5thCoveredRuled
Los Angeles18:37 → 19:3912:3548 min12:350 min4 Aug
Chicago20:37 → 21:3912:3248 min12:320 min4 Aug
Jersey City21:37 → 22:3912:3848 min12:380 min4 Aug
Port of Spain21:37 → 22:3911:4848 min11:480 min4 Aug
London02:37 → 03:3912:4248 min12:420 min4 Aug
Durban03:37 → 04:3911:3848 min11:380 min4 Aug
Dubai05:37 → 06:3912:0148 min12:010 min4 Aug
Delhi07:07 → 08:0912:0348 min12:030 min4 Aug
Kolkata07:07 → 08:0911:1848 min11:180 min4 Aug
Singapore09:07 → 10:0912:1748 min12:170 min4 Aug
Sydney11:37 → 12:3911:3748 min11:3748 min5 Aug
Suva13:37 → 14:3911:480 min11:4848 min5 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

About Ahargaṇa