Ruling · Nāga Pañcamī · 2099

Thursday 20 August

Determinatein Baoding, under the Rashtriya Panchang method. Clear of every threshold by 507 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 20 August

Taken. The only midday Pañcamī reaches.

madhyāhna begins 11:58  12:46 madhyāhna ends
11:1011:3411:5812:2212:4613:1013:34

48 of 48 minutes covered

Midday of Friday 21 August

Pañcamī is absent from madhyāhna. Not taken.

madhyāhna begins 11:57  12:45 madhyāhna ends
11:0911:3311:5712:2112:4513:0913:33

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 03:30 on Thu 20 Aug to 00:45 on Fri 21 Aug.

    2099-08-19T19:30:23Z → 2099-08-20T16:45:30Z

  2. 02

    Kāla

    Madhyāhna is 1 ghaṭikā either side of midday: 11:58–12:46 on the 20th, 11:57–12:45 on the 21st.

    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 20th and 0 of 48 on the 21st.

    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 30440 s

  5. 05

    Ruling

    Nāga Pañcamī, Baoding, 2099: Thursday 20 August.

    confidence: determinate

Say it like this

In Baoding, Nāga Pañcamī 2099 falls on Thursday 20 August. Pañcamī runs from 03:30 on Thu 20 Aug to 00:45 on Fri 21 Aug and covers all of madhyāhna that midday.

ahargana.org/baoding/festivals/2099/naga-panchami · pac-rp@2026.1

Who says what

AuthorityKindDate
Ahargaṇa, pac-rpThis rulingThu 20 Aug
Ahargaṇa, classicalDisc centre, no refractionThu 20 Aug
compat-drikpanchangComparison profileThu 20 Aug
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-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 19thCoveredMadhyāhna 20thCoveredRuled
Los Angeles12:30 → 09:4512:3348 min12:320 min19 Aug
Chicago14:30 → 11:4512:300 min12:300 min20 Aug
Jersey City15:30 → 12:4512:360 min12:3610 min20 Aug
Port of Spain15:30 → 12:4511:460 min11:4648 min20 Aug
London20:30 → 17:4512:400 min12:4048 min20 Aug
Durban21:30 → 18:4511:360 min11:3648 min20 Aug
Dubai23:30 → 20:4511:590 min11:5848 min20 Aug
Delhi01:00 → 22:1512:010 min12:0148 min20 Aug
Kolkata01:00 → 22:1511:170 min11:1648 min20 Aug
Singapore03:30 → 00:4512:450 min12:4448 min20 Aug
Sydney05:30 → 02:4511:360 min11:3548 min20 Aug
Suva07:30 → 04:4511:470 min11:4648 min20 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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