Ruling · Caitrī Pūrṇimā · 2010

Tuesday 30 March

Determinatein Baoding, under the Rashtriya Panchang method. Clear of every threshold by 47 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 Monday 29 March

Pūrṇimā is absent from madhyāhna. Not taken.

madhyāhna begins 11:59  12:47 madhyāhna ends
Pūrṇimā begins 13:34:33
11:1111:3511:5912:2312:4713:1113:35

0 of 48 minutes covered

Midday of Tuesday 30 March

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

madhyāhna begins 11:59  12:47 madhyāhna ends
11:1111:3511:5912:2312:4713:1113:35

0 of 48 minutes covered

Pūrṇimā presentMadhyāhna, the window the rule readsThe instant the tithi begins or ends

How it was decided

  1. 01

    Aṅga

    Pūrṇimā runs from 13:35 on Mon 29 Mar to 10:25 on Tue 30 Mar.

    2010-03-29T05:34:33Z → 2010-03-30T02:25:25Z

  2. 02

    Kāla

    Madhyāhna is 1 ghaṭikā either side of midday: 11:59–12:47 on the 29th, 11:59–12:47 on the 30th.

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

  3. 03

    Rule

    Pūrṇimā must be present during madhyāhna. It covers 0 of 48 minutes on the 29th and 0 of 48 on the 30th.

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

  4. 04

    Tie-break

    Neither midday qualifies. The rule takes the second day.

    priority: paraviddha → second-day · margin 2832 s

  5. 05

    Ruling

    Caitrī Pūrṇimā, Baoding, 2010: Tuesday 30 March.

    confidence: determinate

Say it like this

In Baoding, Caitrī Pūrṇimā 2010 falls on Tuesday 30 March. Pūrṇimā runs from 13:35 on Mon 29 Mar to 10:25 on Tue 30 Mar, and reaches madhyāhna on neither day.

ahargana.org/baoding/festivals/2010/chaitri-purnima · pac-rp@2026.1

Who says what

AuthorityKindDate
Ahargaṇa, pac-rpThis rulingTue 30 Mar
Ahargaṇa, classicalDisc centre, no refractionTue 30 Mar
compat-drikpanchangComparison profileMon 29 Mar
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/chaitri-purnima · ruleset 2026.3-draft

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

“S 15 Caitri purnima (paraviddha), Hanumat jayanti, Oli ending (Jain).” Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 102.

The same rule, elsewhere

Twelve places, west to east. Local clock times.

PlacePūrṇimāMadhyāhna 29thCoveredMadhyāhna 30thCoveredRuled
Los Angeles22:35 → 19:2512:3448 min12:340 min29 Mar
Chicago00:35 → 21:2512:3248 min12:310 min29 Mar
Jersey City01:35 → 22:2512:3748 min12:370 min29 Mar
Port of Spain01:35 → 22:2511:4748 min11:470 min29 Mar
London06:35 → 03:2512:4248 min12:420 min29 Mar
Durban07:35 → 04:2511:3648 min11:360 min29 Mar
Dubai09:35 → 06:2512:0048 min11:590 min29 Mar
Delhi11:05 → 07:5512:0248 min12:020 min29 Mar
Kolkata11:05 → 07:5511:1848 min11:170 min29 Mar
Singapore13:35 → 10:2512:450 min12:450 min30 Mar
Sydney16:35 → 13:2512:360 min12:3648 min30 Mar
Suva17:35 → 14:2511:470 min11:4748 min30 Mar
Profile · tradition
pac-rp@2026.1 · smarta
Rule
chaitri-purnima@2026.3-draft
Engine · kernel
0.1.0 · de440 7eef…ea74
Boundary margin
300 s

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