Ruling · Nāga Pañcamī · 1987

Friday 31 July

Determinatein Baoding, under the Rashtriya Panchang method. Clear of every threshold by 29 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 30 July

Pañcamī is absent from madhyāhna. Not taken.

madhyāhna begins 13:00  13:48 madhyāhna ends
Pañcamī begins 14:16:52
12:1212:3613:0013:2413:4814:1214:36

0 of 48 minutes covered

Midday of Friday 31 July

Taken. The only midday Pañcamī reaches.

madhyāhna begins 13:00  13:48 madhyāhna ends
12:1212:3613:0013:2413:4814:1214:36

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 14:17 on Thu 30 Jul to 15:39 on Fri 31 Jul.

    1987-07-30T05:16:53Z → 1987-07-31T06:39:25Z

  2. 02

    Kāla

    Madhyāhna is 1 ghaṭikā either side of midday: 13:00–13:48 on the 30th, 13:00–13:48 on the 31st.

    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 30th and 48 of 48 on the 31st.

    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 1713 s

  5. 05

    Ruling

    Nāga Pañcamī, Baoding, 1987: Friday 31 July.

    confidence: determinate

Say it like this

In Baoding, Nāga Pañcamī 1987 falls on Friday 31 July. Pañcamī runs from 14:17 on Thu 30 Jul to 15:39 on Fri 31 Jul and covers all of madhyāhna that midday.

ahargana.org/baoding/festivals/1987/naga-panchami · pac-rp@2026.1

Who says what

AuthorityKindDate
Ahargaṇa, pac-rpThis rulingFri 31 Jul
Ahargaṇa, classicalDisc centre, no refractionFri 31 Jul
compat-drikpanchangComparison profileFri 31 Jul
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 30thCoveredMadhyāhna 31stCoveredRuled
Los Angeles22:17 → 23:3912:3548 min12:350 min30 Jul
Chicago00:17 → 01:3912:3348 min12:330 min30 Jul
Jersey City01:17 → 02:3912:3848 min12:380 min30 Jul
Port of Spain01:17 → 02:3911:4848 min11:480 min30 Jul
London06:17 → 07:3912:4248 min12:420 min30 Jul
Durban07:17 → 08:3911:3848 min11:380 min30 Jul
Dubai09:17 → 10:3912:0148 min12:010 min30 Jul
Delhi10:47 → 12:0912:0348 min12:036 min31 Jul
Kolkata10:47 → 12:0911:1948 min11:1948 min31 Jul
Singapore13:17 → 14:3912:4718 min12:4748 min31 Jul
Sydney15:17 → 16:3911:380 min11:3848 min31 Jul
Suva17:17 → 18:3911:490 min11:4948 min31 Jul
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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