Ruling · Ratha Saptamī · 2082

Thursday 5 February

Determinatein Baoding, under the Rashtriya Panchang method. Clear of every threshold by 533 minutes.

Decide it for

38°52′ N 115°28′ E · Asia/Shanghai · GeoNames 1816971

The two dawns

One ghaṭī is 24 minutes. Aruṇodaya is 2 muhūrtas before sunrise.

Dawn of Thursday 5 February

Taken. The only dawn Saptamī reaches.

05:32 aruṇodaya beginssunrise 07:21
05:0805:3205:5606:2006:4407:0807:32

109 of 109 minutes covered

Dawn of Friday 6 February

Saptamī is absent from aruṇodaya. Not taken.

05:31 aruṇodaya beginssunrise 07:20
05:0705:3105:5506:1906:4307:0707:31

0 of 109 minutes covered

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

How it was decided

  1. 01

    Aṅga

    Saptamī runs from 18:21 on Wed 4 Feb to 20:38 on Thu 5 Feb.

    2082-02-04T10:20:57Z → 2082-02-05T12:38:23Z

  2. 02

    Kāla

    Aruṇodaya is 2 muhūrtas before sunrise: 05:32–07:21 on the 5th, 05:31–07:20 on the 6th.

    arunodaya: prev-night-muhurta-14-15 · sunrise and sunset: upper limb, 31′ + 16′

  3. 03

    Rule

    Saptamī must be present during aruṇodaya. It covers 109 of 109 minutes on the 5th and 0 of 109 on the 6th.

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

  4. 04

    Tie-break

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

    priority: unstated → only-day · margin 31964 s

  5. 05

    Ruling

    Ratha Saptamī, Baoding, 2082: Thursday 5 February.

    confidence: determinate

Say it like this

In Baoding, Ratha Saptamī 2082 falls on Thursday 5 February. Saptamī runs from 18:21 on Wed 4 Feb to 20:38 on Thu 5 Feb and covers all of aruṇodaya that dawn.

ahargana.org/baoding/festivals/2082/ratha-saptami · pac-rp@2026.1

Who says what

AuthorityKindDate
Ahargaṇa, pac-rpThis rulingThu 5 Feb
Ahargaṇa, classicalDisc centre, no refractionThu 5 Feb
compat-drikpanchangComparison profileThu 5 Feb
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/ratha-saptami · ruleset 2026.3-draft

Month
Māgha, amānta
Pakṣa · aṅga
Śukla · Saptamī
Kāla
Aruṇodaya
Priority
Unstated
Tie-break
Longer coverage, as a boundary
Reference
CRC 1955, p. 105

“S 7 Ratha saptami (covering 4 ghatikas before sunrise), Acala saptami, Vidhana saptami, Arogya saptami [purvaviddha].” Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 105.

The same rule, elsewhere

Twelve places, west to east. Local clock times.

PlaceSaptamīAruṇodaya 4thCoveredAruṇodaya 5thCoveredRuled
Los Angeles02:21 → 04:3805:01107 min05:000 min4 Feb
Chicago04:21 → 06:3805:09111 min05:0890 min4 Feb
Jersey City05:21 → 07:3805:13102 min05:12110 min5 Feb
Port of Spain06:21 → 08:3804:518 min04:5198 min5 Feb
London10:21 → 12:3805:370 min05:35117 min5 Feb
Durban12:21 → 14:3804:030 min04:0485 min5 Feb
Dubai14:21 → 16:3805:170 min05:16103 min5 Feb
Delhi15:51 → 18:0805:230 min05:22105 min5 Feb
Kolkata15:51 → 18:0804:320 min04:32102 min5 Feb
Singapore18:21 → 20:3805:410 min05:4196 min5 Feb
Sydney21:21 → 23:3804:570 min04:5883 min5 Feb
Suva22:21 → 00:3804:260 min04:2689 min5 Feb
Profile · tradition
pac-rp@2026.1 · smarta
Rule
ratha-saptami@2026.3-draft
Engine · kernel
0.1.0 · de440 7eef…ea74
Boundary margin
300 s

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