Ruling · Śītalāṣṭamī · 1977

Saturday 12 March

Determinatein Baoding, under the Rashtriya Panchang method. Clear of every threshold by 210 minutes.

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 Saturday 12 March

Taken. The only midday Aṣṭamī reaches.

madhyāhna begins 12:04  12:52 madhyāhna ends
11:1611:4012:0412:2812:5213:1613:40

48 of 48 minutes covered

Midday of Sunday 13 March

Aṣṭamī is absent from madhyāhna. Not taken.

madhyāhna begins 12:04  12:52 madhyāhna ends
11:1611:4012:0412:2812:5213:1613:40

0 of 48 minutes covered

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

How it was decided

  1. 01

    Aṅga

    Aṣṭamī runs from 08:35 on Sat 12 Mar to 06:38 on Sun 13 Mar.

    1977-03-12T00:34:46Z → 1977-03-12T22:38:10Z

  2. 02

    Kāla

    Madhyāhna is 1 ghaṭikā either side of midday: 12:04–12:52 on the 12th, 12:04–12:52 on the 13th.

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

  3. 03

    Rule

    Aṣṭamī must be present during madhyāhna. It covers 48 of 48 minutes on the 12th and 0 of 48 on the 13th.

    Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 105

  4. 04

    Tie-break

    Only one midday qualifies. No tie-break is needed.

    priority: purvaviddha → only-day · margin 12573 s

  5. 05

    Ruling

    Śītalāṣṭamī, Baoding, 1977: Saturday 12 March.

    confidence: determinate

Say it like this

In Baoding, Śītalāṣṭamī 1977 falls on Saturday 12 March. Aṣṭamī runs from 08:35 on Sat 12 Mar to 06:38 on Sun 13 Mar and covers all of madhyāhna that midday.

ahargana.org/baoding/festivals/1977/shitalashtami · pac-rp@2026.1

Who says what

AuthorityKindDate
Ahargaṇa, pac-rpThis rulingSat 12 Mar
Ahargaṇa, classicalDisc centre, no refractionSat 12 Mar
compat-drikpanchangComparison profileSat 12 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/shitalashtami · ruleset 2026.3-draft

Month
Phālguna, amānta
Pakṣa · aṅga
Kṛṣṇa · Aṣṭamī
Kāla
Madhyāhna
Priority
Pūrvaviddhā
Tie-break
First day
Reference
CRC 1955, p. 105

“K 8 Sitalastami, (purvaviddha)” Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 105.

The same rule, elsewhere

Twelve places, west to east. Local clock times.

PlaceAṣṭamīMadhyāhna 12thCoveredMadhyāhna 13thCoveredRuled
Los Angeles16:35 → 14:3811:3948 min11:390 min12 Mar
Chicago18:35 → 16:3811:3748 min11:360 min12 Mar
Jersey City19:35 → 17:3811:4248 min11:420 min12 Mar
Port of Spain20:35 → 18:3811:5248 min11:520 min12 Mar
London00:35 → 22:3811:4748 min11:460 min12 Mar
Durban02:35 → 00:3811:4148 min11:410 min12 Mar
Dubai04:35 → 02:3812:0548 min12:040 min12 Mar
Delhi06:05 → 04:0812:0748 min12:070 min12 Mar
Kolkata06:05 → 04:0811:2348 min11:220 min12 Mar
Singapore08:05 → 06:0812:2048 min12:200 min12 Mar
Sydney10:35 → 08:3811:4148 min11:410 min12 Mar
Suva12:35 → 10:3811:525 min11:520 min12 Mar
Profile · tradition
pac-rp@2026.1 · smarta
Rule
shitalashtami@2026.3-draft
Engine · kernel
0.1.0 · de440 7eef…ea74
Boundary margin
300 s

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