Ruling · Skanda Pañcamī · 2051

Thursday 13 July

Boundaryin Baoding, under the Rashtriya Panchang method. A threshold is only 1 min 40 s away. Say “contested”.

Decide it for

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 Wednesday 12 July

Qualifies with 48 of 48 minutes. Not taken.

madhyāhna begins 12:00  12:48 madhyāhna ends
Pañcamī begins 11:58:03
11:1211:3612:0012:2412:4813:1213:36

48 of 48 minutes covered

Midday of Thursday 13 July

Taken. Both middays qualify; the rule takes the second.

madhyāhna begins 12:00  12:48 madhyāhna ends
Pañcamī ends 13:32:19
11:1211:3612:0012:2412:4813:1213:36

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 11:58 on Wed 12 Jul to 13:32 on Thu 13 Jul.

    2051-07-12T03:58:04Z → 2051-07-13T05:32:20Z

  2. 02

    Kāla

    Madhyāhna is 1 ghaṭikā either side of midday: 12:00–12:48 on the 12th, 12:00–12:48 on the 13th.

    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 12th and 48 of 48 on the 13th.

    Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 102

  4. 04

    Tie-break

    Both middays qualify. Paraviddhā: the second is taken.

    priority: paraviddha → paraviddha · margin 100 s < 300 s

  5. 05

    Ruling

    Skanda Pañcamī, Baoding, 2051: Thursday 13 July.

    confidence: boundary (margin)

Say it like this

In Baoding, Skanda Pañcamī 2051 falls on Thursday 13 July. Pañcamī runs from 11:58 on Wed 12 Jul to 13:32 on Thu 13 Jul and covers all of madhyāhna that midday. It also reaches the previous midday for 48 minutes; by the rule the second midday is taken. It is 1 min 40 s from a threshold: treat the date as contested.

ahargana.org/baoding/festivals/2051/skanda-panchami · pac-rp@2026.1

Who says what

AuthorityKindDate
Ahargaṇa, pac-rpThis rulingThu 13 Jul
Ahargaṇa, classicalDisc centre, no refractionThu 13 Jul
compat-drikpanchangComparison profileThu 13 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/skanda-panchami · ruleset 2026.3-draft

Month
Āṣāḍha, amānta
Pakṣa · aṅga
Śukla · Pañcamī
Kāla
Madhyāhna
Priority
Paraviddhā
Tie-break
Second day
Reference
CRC 1955, p. 102

“S 5 Skanda pancami (paraviddha).” Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 102.

The same rule, elsewhere

Twelve places, west to east. Local clock times.

PlacePañcamīMadhyāhna 12thCoveredMadhyāhna 13thCoveredRuled
Los Angeles20:58 → 22:3212:3548 min12:350 min12 Jul
Chicago22:58 → 00:3212:3248 min12:320 min12 Jul
Jersey City23:58 → 01:3212:3848 min12:380 min12 Jul
Port of Spain23:58 → 01:3211:4848 min11:480 min12 Jul
London04:58 → 06:3212:4248 min12:420 min12 Jul
Durban05:58 → 07:3211:3848 min11:380 min12 Jul
Dubai07:58 → 09:3212:0048 min12:010 min12 Jul
Delhi09:28 → 11:0212:0348 min12:030 min12 Jul
Kolkata09:28 → 11:0211:1848 min11:180 min12 Jul
Singapore11:58 → 13:3212:4648 min12:4646 min13 Jul
Sydney13:58 → 15:3211:370 min11:3748 min13 Jul
Suva15:58 → 17:3211:480 min11:4848 min13 Jul
Profile · tradition
pac-rp@2026.1 · smarta
Rule
skanda-panchami@2026.3-draft
Engine · kernel
0.1.0 · de440 7eef…ea74
Boundary margin
300 s

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