Ruling · Śītalāṣṭamī · 2077

Thursday 18 March

Determinatein Baoding, under the Rashtriya Panchang method. Clear of every threshold by 13 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 Wednesday 17 March

Aṣṭamī is absent from madhyāhna. Not taken.

madhyāhna begins 12:03  12:51 madhyāhna ends
Aṣṭamī begins 13:05:11
11:1511:3912:0312:2712:5113:1513:39

0 of 48 minutes covered

Midday of Thursday 18 March

Taken. The only midday Aṣṭamī reaches.

madhyāhna begins 12:03  12:51 madhyāhna ends
Aṣṭamī ends 12:37:54
11:1511:3912:0312:2712:5113:1513:39

35 of 48 minutes covered, the first 35

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

How it was decided

  1. 01

    Aṅga

    Aṣṭamī runs from 13:05 on Wed 17 Mar to 12:38 on Thu 18 Mar.

    2077-03-17T05:05:11Z → 2077-03-18T04:37:54Z

  2. 02

    Kāla

    Madhyāhna is 1 ghaṭikā either side of midday: 12:03–12:51 on the 17th, 12:03–12:51 on the 18th.

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

  3. 03

    Rule

    Aṣṭamī must be present during madhyāhna. It covers 0 of 48 minutes on the 17th and 35 of 48 on the 18th.

    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 760 s

  5. 05

    Ruling

    Śītalāṣṭamī, Baoding, 2077: Thursday 18 March.

    confidence: determinate

Say it like this

In Baoding, Śītalāṣṭamī 2077 falls on Thursday 18 March. Aṣṭamī runs from 13:05 on Wed 17 Mar to 12:38 on Thu 18 Mar and covers 35 of 48 minutes of madhyāhna that midday.

ahargana.org/baoding/festivals/2077/shitalashtami · pac-rp@2026.1

Who says what

AuthorityKindDate
Ahargaṇa, pac-rpThis rulingThu 18 Mar
Ahargaṇa, classicalDisc centre, no refractionThu 18 Mar
compat-drikpanchangComparison profileWed 17 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 17thCoveredMadhyāhna 18thCoveredRuled
Los Angeles22:05 → 21:3812:3748 min12:370 min17 Mar
Chicago00:05 → 23:3812:3548 min12:350 min17 Mar
Jersey City01:05 → 00:3812:4148 min12:410 min17 Mar
Port of Spain01:05 → 00:3811:5048 min11:500 min17 Mar
London05:05 → 04:3811:4548 min11:450 min17 Mar
Durban07:05 → 06:3811:4048 min11:400 min17 Mar
Dubai09:05 → 08:3812:0348 min12:030 min17 Mar
Delhi10:35 → 10:0812:0648 min12:050 min17 Mar
Kolkata10:35 → 10:0811:2148 min11:210 min17 Mar
Singapore13:05 → 12:3812:4932 min12:490 min17 Mar
Sydney16:05 → 15:3812:390 min12:3948 min18 Mar
Suva17:05 → 16:3811:510 min11:5048 min18 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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