Ruling · Ratha Saptamī · 2071

Saturday 7 February

Determinatein Baoding, under the Rashtriya Panchang method. Clear of every threshold by 569 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 Saturday 7 February

Taken. The only dawn Saptamī reaches.

05:31 aruṇodaya beginssunrise 07:19
05:0705:3105:5506:1906:4307:0707:31

109 of 109 minutes covered

Dawn of Sunday 8 February

Saptamī is absent from aruṇodaya. Not taken.

05:30 aruṇodaya beginssunrise 07:18
05:0605:3005:5406:1806:4207:0607:30

0 of 108 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 20:02 on Fri 6 Feb to 19:10 on Sat 7 Feb.

    2071-02-06T12:01:56Z → 2071-02-07T11:10:04Z

  2. 02

    Kāla

    Aruṇodaya is 2 muhūrtas before sunrise: 05:31–07:19 on the 7th, 05:30–07:18 on the 8th.

    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 7th and 0 of 108 on the 8th.

    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 34118 s

  5. 05

    Ruling

    Ratha Saptamī, Baoding, 2071: Saturday 7 February.

    confidence: determinate

Say it like this

In Baoding, Ratha Saptamī 2071 falls on Saturday 7 February. Saptamī runs from 20:02 on Fri 6 Feb to 19:10 on Sat 7 Feb and covers all of aruṇodaya that dawn.

ahargana.org/baoding/festivals/2071/ratha-saptami · pac-rp@2026.1

Who says what

AuthorityKindDate
Ahargaṇa, pac-rpThis rulingSat 7 Feb
Ahargaṇa, classicalDisc centre, no refractionSat 7 Feb
compat-drikpanchangComparison profileSat 7 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 6thCoveredAruṇodaya 7thCoveredRuled
Los Angeles04:02 → 03:1005:00107 min04:590 min6 Feb
Chicago06:02 → 05:1005:0756 min05:073 min6 Feb
Jersey City07:02 → 06:1005:120 min05:1159 min7 Feb
Port of Spain08:02 → 07:1004:510 min04:5098 min7 Feb
London12:02 → 11:1005:340 min05:33116 min7 Feb
Durban14:02 → 13:1004:040 min04:0585 min7 Feb
Dubai16:02 → 15:1005:160 min05:16103 min7 Feb
Delhi17:32 → 16:4005:220 min05:22104 min7 Feb
Kolkata17:32 → 16:4004:320 min04:31102 min7 Feb
Singapore20:02 → 19:1005:410 min05:4196 min7 Feb
Sydney23:02 → 22:1004:580 min04:5984 min7 Feb
Suva00:02 → 23:1004:260 min04:2790 min7 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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