Ruling · Mitra Saptamī · 1970

Saturday 5 December

Determinatein Baoding, under the Rashtriya Panchang method. Clear of every threshold by 302 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 Friday 4 December

Saptamī is absent from madhyāhna. Not taken.

madhyāhna begins 11:44  12:32 madhyāhna ends
10:5611:2011:4412:0812:3212:5613:20

0 of 48 minutes covered

Midday of Saturday 5 December

Taken. The only midday Saptamī reaches.

madhyāhna begins 11:44  12:32 madhyāhna ends
10:5611:2011:4412:0812:3212:5613:20

48 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 19:32 on Fri 4 Dec to 17:35 on Sat 5 Dec.

    1970-12-04T11:32:30Z → 1970-12-05T09:34:33Z

  2. 02

    Kāla

    Madhyāhna is 1 ghaṭikā either side of midday: 11:44–12:32 on the 4th, 11:44–12:32 on the 5th.

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

  3. 03

    Rule

    Saptamī must be present during madhyāhna. It covers 0 of 48 minutes on the 4th and 48 of 48 on the 5th.

    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 18125 s

  5. 05

    Ruling

    Mitra Saptamī, Baoding, 1970: Saturday 5 December.

    confidence: determinate

Say it like this

In Baoding, Mitra Saptamī 1970 falls on Saturday 5 December. Saptamī runs from 19:32 on Fri 4 Dec to 17:35 on Sat 5 Dec and covers all of madhyāhna that midday.

ahargana.org/baoding/festivals/1970/mitra-saptami · pac-rp@2026.1

Who says what

AuthorityKindDate
Ahargaṇa, pac-rpThis rulingSat 5 Dec
Ahargaṇa, classicalDisc centre, no refractionSat 5 Dec
compat-drikpanchangComparison profileSat 5 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 4thCoveredMadhyāhna 5thCoveredRuled
Los Angeles03:32 → 01:3511:1948 min11:200 min4 Dec
Chicago05:32 → 03:3511:1748 min11:170 min4 Dec
Jersey City06:32 → 04:3511:2248 min11:230 min4 Dec
Port of Spain07:32 → 05:3511:3248 min11:330 min4 Dec
London12:32 → 10:3512:2642 min12:270 min4 Dec
Durban13:32 → 11:3511:220 min11:2212 min5 Dec
Dubai15:32 → 13:3511:450 min11:4548 min5 Dec
Delhi17:02 → 15:0511:470 min11:4748 min5 Dec
Kolkata17:02 → 15:0511:030 min11:0348 min5 Dec
Singapore19:02 → 17:0512:010 min12:0148 min5 Dec
Sydney21:32 → 19:3511:210 min11:2248 min5 Dec
Suva23:32 → 21:3511:320 min11:3348 min5 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

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