Ruling · Hala Ṣaṣṭhī · 2011

Saturday 20 August

Determinatein Daqing, under the Rashtriya Panchang method. Clear of every threshold by 5 min 39 s.

Decide it for

DaqingDelhiKolkataSingaporeSydneyJersey City

46°35′ N 125°00′ E · Asia/Shanghai · GeoNames 2037860

The two middays

One ghaṭī is 24 minutes. Madhyāhna is 1 ghaṭikā either side of midday.

Midday of Friday 19 August

Ṣaṣṭhī is absent from madhyāhna. Not taken.

madhyāhna begins 11:19  12:07 madhyāhna ends
Ṣaṣṭhī begins 12:12:59
10:3110:5511:1911:4312:0712:3112:55

0 of 48 minutes covered

Midday of Saturday 20 August

Taken. The only midday Ṣaṣṭhī reaches.

madhyāhna begins 11:19  12:07 madhyāhna ends
10:3110:5511:1911:4312:0712:3112:55

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 12:13 on Fri 19 Aug to 14:40 on Sat 20 Aug.

    2011-08-19T04:12:59Z → 2011-08-20T06:40:24Z

  2. 02

    Kāla

    Madhyāhna is 1 ghaṭikā either side of midday: 11:19–12:07 on the 19th, 11:19–12:07 on the 20th.

    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 19th and 48 of 48 on the 20th.

    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 339 s

  5. 05

    Ruling

    Hala Ṣaṣṭhī, Daqing, 2011: Saturday 20 August.

    confidence: determinate

Say it like this

In Daqing, Hala Ṣaṣṭhī 2011 falls on Saturday 20 August. Ṣaṣṭhī runs from 12:13 on Fri 19 Aug to 14:40 on Sat 20 Aug and covers all of madhyāhna that midday.

ahargana.org/daqing/festivals/2011/hala-shashthi · pac-rp@2026.1

Who says what

AuthorityKindDate
Ahargaṇa, pac-rpThis rulingSat 20 Aug
Ahargaṇa, classicalDisc centre, no refractionSat 20 Aug
compat-drikpanchangComparison profileSat 20 Aug
No institution has a recorded ruling for Daqing.

Institutional rulings are recorded with a source address, and are never edited to agree.

The rule, as data

/rules/hala-shashthi · ruleset 2026.3-draft

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

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

The same rule, elsewhere

Twelve places, west to east. Local clock times.

PlaceṢaṣṭhīMadhyāhna 19thCoveredMadhyāhna 20thCoveredRuled
Los Angeles21:13 → 23:4012:3248 min12:320 min19 Aug
Chicago23:13 → 01:4012:3048 min12:300 min19 Aug
Jersey City00:13 → 02:4012:3648 min12:350 min19 Aug
Port of Spain00:13 → 02:4011:4648 min11:450 min19 Aug
London05:13 → 07:4012:4048 min12:390 min19 Aug
Durban06:13 → 08:4011:3648 min11:360 min19 Aug
Dubai08:13 → 10:4011:5848 min11:580 min19 Aug
Delhi09:43 → 12:1012:0148 min12:0010 min20 Aug
Kolkata09:43 → 12:1011:1648 min11:1648 min20 Aug
Singapore12:13 → 14:4012:4448 min12:4448 min20 Aug
Sydney14:13 → 16:4011:350 min11:3548 min20 Aug
Suva16:13 → 18:4011:460 min11:4648 min20 Aug
Profile · tradition
pac-rp@2026.1 · smarta
Rule
hala-shashthi@2026.3-draft
Engine · kernel
0.1.0 · de440 7eef…ea74
Boundary margin
300 s

About Ahargaṇa