Ruling · Sūrya Ṣaṣṭhī (Bhādrapada) · 2018

Saturday 15 September

Determinatein Baoding, under the Rashtriya Panchang method. Clear of every threshold by 256 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 Friday 14 September

Ṣaṣṭhī is absent from madhyāhna. Not taken.

madhyāhna begins 11:50  12:38 madhyāhna ends
11:0211:2611:5012:1412:3813:0213:26

0 of 48 minutes covered

Midday of Saturday 15 September

Taken. The only midday Ṣaṣṭhī reaches.

madhyāhna begins 11:49  12:37 madhyāhna ends
11:0111:2511:4912:1312:3713:0113:25

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 16:54 on Fri 14 Sep to 17:15 on Sat 15 Sep.

    2018-09-14T08:53:43Z → 2018-09-15T09:15:13Z

  2. 02

    Kāla

    Madhyāhna is 1 ghaṭikā either side of midday: 11:50–12:38 on the 14th, 11:49–12:37 on the 15th.

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

  3. 03

    Rule

    Ṣaṣṭhī must be present during madhyāhna. It covers 0 of 48 minutes on the 14th and 48 of 48 on the 15th.

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

  4. 04

    Tie-break

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

    priority: paraviddha → only-day · margin 15372 s

  5. 05

    Ruling

    Sūrya Ṣaṣṭhī (Bhādrapada), Baoding, 2018: Saturday 15 September.

    confidence: determinate

Say it like this

In Baoding, Sūrya Ṣaṣṭhī (Bhādrapada) 2018 falls on Saturday 15 September. Ṣaṣṭhī runs from 16:54 on Fri 14 Sep to 17:15 on Sat 15 Sep and covers all of madhyāhna that midday.

ahargana.org/baoding/festivals/2018/surya-shashthi-bhadrapada · pac-rp@2026.1

Who says what

AuthorityKindDate
Ahargaṇa, pac-rpThis rulingSat 15 Sep
Ahargaṇa, classicalDisc centre, no refractionSat 15 Sep
compat-drikpanchangComparison profileSat 15 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 14thCoveredMadhyāhna 15thCoveredRuled
Los Angeles01:54 → 02:1512:2448 min12:240 min14 Sep
Chicago03:54 → 04:1512:2248 min12:210 min14 Sep
Jersey City04:54 → 05:1512:2748 min12:270 min14 Sep
Port of Spain04:54 → 05:1511:3848 min11:370 min14 Sep
London09:54 → 10:1512:3248 min12:310 min14 Sep
Durban10:54 → 11:1511:2848 min11:270 min14 Sep
Dubai12:54 → 13:1511:500 min11:5048 min15 Sep
Delhi14:24 → 14:4511:530 min11:5248 min15 Sep
Kolkata14:24 → 14:4511:080 min11:0848 min15 Sep
Singapore16:54 → 17:1512:360 min12:3648 min15 Sep
Sydney18:54 → 19:1511:270 min11:2748 min15 Sep
Suva20:54 → 21:1511:380 min11:3848 min15 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

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