Ruling · Ratha Saptamī · 1956

Sunday 19 February

Boundaryin Baoding, under the Rashtriya Panchang method. A threshold is only 4 min 57 s away. Say “contested”.

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 18 February

Saptamī is absent from aruṇodaya. Not taken.

05:22 aruṇodaya beginssunrise 07:08
Saptamī begins 07:12:47
04:5805:2205:4606:1006:3406:5807:22

0 of 106 minutes covered

Dawn of Sunday 19 February

Taken. The only dawn Saptamī reaches.

05:21 aruṇodaya beginssunrise 07:07
Saptamī ends 06:04:35
04:5705:2105:4506:0906:3306:5707:21

43 of 105 minutes covered, the first 43

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

How it was decided

  1. 01

    Aṅga

    Saptamī runs from 07:13 on Sat 18 Feb to 06:05 on Sun 19 Feb.

    1956-02-17T23:12:48Z → 1956-02-18T22:04:36Z

  2. 02

    Kāla

    Aruṇodaya is 2 muhūrtas before sunrise: 05:22–07:08 on the 18th, 05:21–07:07 on the 19th.

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

  3. 03

    Rule

    Saptamī must be present during aruṇodaya. It covers 0 of 106 minutes on the 18th and 43 of 105 on the 19th.

    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 297 s < 300 s

  5. 05

    Ruling

    Ratha Saptamī, Baoding, 1956: Sunday 19 February.

    confidence: boundary (margin)

Say it like this

In Baoding, Ratha Saptamī 1956 falls on Sunday 19 February. Saptamī runs from 07:13 on Sat 18 Feb to 06:05 on Sun 19 Feb and covers 43 of 105 minutes of aruṇodaya that dawn. It is 4 min 57 s from a threshold: treat the date as contested.

ahargana.org/baoding/festivals/1956/ratha-saptami · pac-rp@2026.1

Who says what

AuthorityKindDate
Ahargaṇa, pac-rpThis rulingSun 19 Feb
Ahargaṇa, classicalDisc centre, no refractionSun 19 Feb
compat-drikpanchangComparison profileSun 19 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 17thCoveredAruṇodaya 18thCoveredRuled
Los Angeles15:13 → 14:0504:530 min04:52104 min18 Feb
Chicago17:13 → 16:0504:580 min04:57107 min18 Feb
Jersey City18:13 → 17:0505:030 min05:02106 min18 Feb
Port of Spain19:13 → 18:0504:490 min04:4898 min18 Feb
London23:13 → 22:0505:210 min05:20111 min18 Feb
Durban01:13 → 00:0504:100 min04:1187 min18 Feb
Dubai03:13 → 02:0505:120 min05:11101 min18 Feb
Delhi04:43 → 03:3505:170 min05:16102 min18 Feb
Kolkata04:43 → 03:3504:280 min04:2785 min18 Feb
Singapore06:43 → 05:3505:110 min05:114 min19 Feb
Sydney09:13 → 08:0504:060 min04:060 min19 Feb
Suva11:13 → 10:0504:300 min04:300 min19 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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