Ruling · Sūrya Ṣaṣṭhī (Bhādrapada) · 1909

Tuesday 21 September

Determinatein Baoding, under the Rashtriya Panchang method. Clear of every threshold by 27 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 Monday 20 September

Qualifies with 48 of 48 minutes. Not taken.

madhyāhna begins 11:48  12:36 madhyāhna ends
Ṣaṣṭhī begins 11:15:14
11:0011:2411:4812:1212:3613:0013:24

48 of 48 minutes covered

Midday of Tuesday 21 September

Taken. Both middays qualify; the rule takes the second.

madhyāhna begins 11:47  12:35 madhyāhna ends
Ṣaṣṭhī ends 13:02:15
10:5911:2311:4712:1112:3512:5913:23

48 of 48 minutes covered

Ṣaṣṭhī presentMadhyāhna, the window the rule readsThe instant the tithi begins or ends

How it was decided

  1. 01

    Aṅga

    Ṣaṣṭhī runs from 11:15 on Mon 20 Sep to 13:02 on Tue 21 Sep.

    1909-09-20T03:15:15Z → 1909-09-21T05:02:16Z

  2. 02

    Kāla

    Madhyāhna is 1 ghaṭikā either side of midday: 11:48–12:36 on the 20th, 11:47–12:35 on the 21st.

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

  3. 03

    Rule

    Ṣaṣṭhī must be present during madhyāhna. It covers 48 of 48 minutes on the 20th and 48 of 48 on the 21st.

    Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 103

  4. 04

    Tie-break

    Both middays qualify. Paraviddhā: the second is taken.

    priority: paraviddha → paraviddha · margin 1626 s

  5. 05

    Ruling

    Sūrya Ṣaṣṭhī (Bhādrapada), Baoding, 1909: Tuesday 21 September.

    confidence: determinate

Say it like this

In Baoding, Sūrya Ṣaṣṭhī (Bhādrapada) 1909 falls on Tuesday 21 September. Ṣaṣṭhī runs from 11:15 on Mon 20 Sep to 13:02 on Tue 21 Sep and covers all of madhyāhna that midday. It also reaches the previous midday for 48 minutes; by the rule the second midday is taken.

ahargana.org/baoding/festivals/1909/surya-shashthi-bhadrapada · pac-rp@2026.1

Who says what

AuthorityKindDate
Ahargaṇa, pac-rpThis rulingTue 21 Sep
Ahargaṇa, classicalDisc centre, no refractionTue 21 Sep
compat-drikpanchangComparison profileTue 21 Sep
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/surya-shashthi-bhadrapada · ruleset 2026.3-draft

Month
Bhādrapada, amānta
Pakṣa · aṅga
Śukla · Ṣaṣṭhī
Kāla
Madhyāhna
Priority
Paraviddhā
Tie-break
Second day
Reference
CRC 1955, p. 103

“S 6 Surya sasthi (paraviddha), Lolarka sasthi” Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 103.

The same rule, elsewhere

Twelve places, west to east. Local clock times.

PlaceṢaṣṭhīMadhyāhna 20thCoveredMadhyāhna 21stCoveredRuled
Los Angeles19:15 → 21:0211:2248 min11:220 min20 Sep
Chicago21:15 → 23:0211:2048 min11:190 min20 Sep
Jersey City22:15 → 00:0211:2548 min11:250 min20 Sep
Port of Spain23:15 → 01:0211:3648 min11:350 min20 Sep
London03:15 → 05:0211:3048 min11:290 min20 Sep
Durban05:15 → 07:0211:2648 min11:250 min20 Sep
Dubai06:56 → 08:4311:2948 min11:290 min20 Sep
Delhi08:45 → 10:3211:5148 min11:500 min20 Sep
Kolkata08:45 → 10:3211:0648 min11:060 min20 Sep
Singapore10:15 → 12:0211:3448 min11:3428 min21 Sep
Sydney13:15 → 15:0211:250 min11:2548 min21 Sep
Suva15:10 → 16:5711:310 min11:3148 min21 Sep
Profile · tradition
pac-rp@2026.1 · smarta
Rule
surya-shashthi-bhadrapada@2026.3-draft
Engine · kernel
0.1.0 · de440 7eef…ea74
Boundary margin
300 s

About Ahargaṇa