Ruling · Nāga Pañcamī · 2045

Thursday 17 August

Determinatein Daqing, under the Rashtriya Panchang method. Clear of every threshold by 13 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 Wednesday 16 August

Pañcamī is absent from madhyāhna. Not taken.

madhyāhna begins 11:20  12:08 madhyāhna ends
Pañcamī begins 12:21:01
10:3210:5611:2011:4412:0812:3212:56

0 of 48 minutes covered

Midday of Thursday 17 August

Taken. Pañcamī reaches neither midday; the rule takes the second day.

madhyāhna begins 11:20  12:08 madhyāhna ends
10:3210:5611:2011:4412:0812:3212:56

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 12:21 on Wed 16 Aug to 10:11 on Thu 17 Aug.

    2045-08-16T04:21:01Z → 2045-08-17T02:11:02Z

  2. 02

    Kāla

    Madhyāhna is 1 ghaṭikā either side of midday: 11:20–12:08 on the 16th, 11:20–12:08 on the 17th.

    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 16th and 0 of 48 on the 17th.

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

  4. 04

    Tie-break

    Neither midday qualifies. The rule takes the second day.

    priority: paraviddha → second-day · margin 786 s

  5. 05

    Ruling

    Nāga Pañcamī, Daqing, 2045: Thursday 17 August.

    confidence: determinate

Say it like this

In Daqing, Nāga Pañcamī 2045 falls on Thursday 17 August. Pañcamī runs from 12:21 on Wed 16 Aug to 10:11 on Thu 17 Aug, and reaches madhyāhna on neither day.

ahargana.org/daqing/festivals/2045/naga-panchami · pac-rp@2026.1

Who says what

AuthorityKindDate
Ahargaṇa, pac-rpThis rulingThu 17 Aug
Ahargaṇa, classicalDisc centre, no refractionThu 17 Aug
compat-drikpanchangComparison profileWed 16 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 16thCoveredMadhyāhna 17thCoveredRuled
Los Angeles21:21 → 19:1112:3348 min12:330 min16 Aug
Chicago23:21 → 21:1112:3048 min12:300 min16 Aug
Jersey City00:21 → 22:1112:3648 min12:360 min16 Aug
Port of Spain00:21 → 22:1111:4648 min11:460 min16 Aug
London05:21 → 03:1112:4048 min12:400 min16 Aug
Durban06:21 → 04:1111:3648 min11:360 min16 Aug
Dubai08:21 → 06:1111:5948 min11:590 min16 Aug
Delhi09:51 → 07:4112:0148 min12:010 min16 Aug
Kolkata09:51 → 07:4111:1748 min11:170 min16 Aug
Singapore12:21 → 10:1112:4548 min12:450 min16 Aug
Sydney14:21 → 12:1111:360 min11:3636 min17 Aug
Suva16:21 → 14:1111:470 min11:4748 min17 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