Ruling · Mitra Saptamī · 1964

Friday 11 December

Determinatein Baoding, under the Rashtriya Panchang method. Clear of every threshold by 610 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 Friday 11 December

Taken. The only midday Saptamī reaches.

madhyāhna begins 11:47  12:35 madhyāhna ends
10:5911:2311:4712:1112:3512:5913:23

48 of 48 minutes covered

Midday of Saturday 12 December

Saptamī is absent from madhyāhna. Not taken.

madhyāhna begins 11:48  12:36 madhyāhna ends
11:0011:2411:4812:1212:3613:0013:24

0 of 48 minutes covered

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

How it was decided

  1. 01

    Aṅga

    Saptamī runs from 00:17 on Fri 11 Dec to 01:37 on Sat 12 Dec.

    1964-12-10T16:17:13Z → 1964-12-11T17:37:22Z

  2. 02

    Kāla

    Madhyāhna is 1 ghaṭikā either side of midday: 11:47–12:35 on the 11th, 11:48–12:36 on the 12th.

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

  3. 03

    Rule

    Saptamī must be present during madhyāhna. It covers 48 of 48 minutes on the 11th and 0 of 48 on the 12th.

    Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 104

  4. 04

    Tie-break

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

    priority: purvaviddha → only-day · margin 36625 s

  5. 05

    Ruling

    Mitra Saptamī, Baoding, 1964: Friday 11 December.

    confidence: determinate

Say it like this

In Baoding, Mitra Saptamī 1964 falls on Friday 11 December. Saptamī runs from 00:17 on Fri 11 Dec to 01:37 on Sat 12 Dec and covers all of madhyāhna that midday.

ahargana.org/baoding/festivals/1964/mitra-saptami · pac-rp@2026.1

Who says what

AuthorityKindDate
Ahargaṇa, pac-rpThis rulingFri 11 Dec
Ahargaṇa, classicalDisc centre, no refractionFri 11 Dec
compat-drikpanchangComparison profileFri 11 Dec
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/mitra-saptami · ruleset 2026.3-draft

Month
Mārgaśīrṣa, amānta
Pakṣa · aṅga
Śukla · Saptamī
Kāla
Madhyāhna
Priority
Pūrvaviddhā
Tie-break
First day
Reference
CRC 1955, p. 104

“S 7 Mitra saptami (purvaviddha).” Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 104.

The same rule, elsewhere

Twelve places, west to east. Local clock times.

PlaceSaptamīMadhyāhna 10thCoveredMadhyāhna 11thCoveredRuled
Los Angeles08:17 → 09:3711:2248 min11:220 min10 Dec
Chicago10:17 → 11:3711:2048 min11:2017 min10 Dec
Jersey City11:17 → 12:3711:2548 min11:2648 min10 Dec
Port of Spain12:17 → 13:3711:356 min11:3648 min10 Dec
London16:17 → 17:3711:290 min11:3048 min11 Dec
Durban18:17 → 19:3711:250 min11:2548 min11 Dec
Dubai20:17 → 21:3711:480 min11:4848 min11 Dec
Delhi21:47 → 23:0711:500 min11:5048 min11 Dec
Kolkata21:47 → 23:0711:050 min11:0648 min11 Dec
Singapore23:47 → 01:0712:030 min12:0448 min11 Dec
Sydney02:17 → 03:3711:240 min11:2448 min11 Dec
Suva04:17 → 05:3711:350 min11:3548 min11 Dec
Profile · tradition
pac-rp@2026.1 · smarta
Rule
mitra-saptami@2026.3-draft
Engine · kernel
0.1.0 · de440 7eef…ea74
Boundary margin
300 s

About Ahargaṇa