Ruling · Ratha Saptamī · 1948

Tuesday 17 February

Determinatein Baoding, under the Rashtriya Panchang method. Clear of every threshold by 438 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 Tuesday 17 February

Taken. The only dawn Saptamī reaches.

05:23 aruṇodaya beginssunrise 07:09
04:5905:2305:4706:1106:3506:5907:23

106 of 106 minutes covered

Dawn of Wednesday 18 February

Saptamī is absent from aruṇodaya. Not taken.

05:22 aruṇodaya beginssunrise 07:08
04:5805:2205:4606:1006:3406:5807:22

0 of 106 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 21:52 on Mon 16 Feb to 22:05 on Tue 17 Feb.

    1948-02-16T13:51:59Z → 1948-02-17T14:04:37Z

  2. 02

    Kāla

    Aruṇodaya is 2 muhūrtas before sunrise: 05:23–07:09 on the 17th, 05:22–07:08 on the 18th.

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

  3. 03

    Rule

    Saptamī must be present during aruṇodaya. It covers 106 of 106 minutes on the 17th and 0 of 106 on the 18th.

    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 26265 s

  5. 05

    Ruling

    Ratha Saptamī, Baoding, 1948: Tuesday 17 February.

    confidence: determinate

Say it like this

In Baoding, Ratha Saptamī 1948 falls on Tuesday 17 February. Saptamī runs from 21:52 on Mon 16 Feb to 22:05 on Tue 17 Feb and covers all of aruṇodaya that dawn.

ahargana.org/baoding/festivals/1948/ratha-saptami · pac-rp@2026.1

Who says what

AuthorityKindDate
Ahargaṇa, pac-rpThis rulingTue 17 Feb
Ahargaṇa, classicalDisc centre, no refractionTue 17 Feb
compat-drikpanchangComparison profileTue 17 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 16thCoveredAruṇodaya 17thCoveredRuled
Los Angeles05:52 → 06:0504:5446 min04:5372 min17 Feb
Chicago07:52 → 08:0504:590 min04:58107 min17 Feb
Jersey City08:52 → 09:0505:040 min05:03106 min17 Feb
Port of Spain09:52 → 10:0504:490 min04:4998 min17 Feb
London13:52 → 14:0505:230 min05:21112 min17 Feb
Durban15:52 → 16:0504:100 min04:1087 min17 Feb
Dubai17:52 → 18:0505:120 min05:12101 min17 Feb
Delhi19:22 → 19:3505:170 min05:17102 min17 Feb
Kolkata19:22 → 19:3504:280 min04:28101 min17 Feb
Singapore21:22 → 21:3505:110 min05:1195 min17 Feb
Sydney23:52 → 00:0504:050 min04:0686 min17 Feb
Suva01:52 → 02:0504:300 min04:3091 min17 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

About Ahargaṇa