Ruling · Saṅkaṣṭa Caturthī (Sankatahara Chaturthi) · 2026

Friday 6 March

Determinatein Ujjain, under the Rashtriya Panchang method. Clear of every threshold by 171 minutes.

Decide it for

23°11′ N 75°47′ E · Asia/Kolkata · GeoNames 1253914

The two moonrises

One ghaṭī is 24 minutes. The moonrise is read as disc centre, 31′.

Moonrise of Friday 6 March

Taken. The only moonrise Caturthī holds at.

21:15 moonrise
20:0320:2720:5121:1521:3922:0322:27

Holds at moonrise

Moonrise of Saturday 7 March

Caturthī does not hold at moonrise. Not taken.

22:09 moonrise
20:5721:2121:4522:0922:3322:5723:21

Absent at moonrise

Caturthī presentMoonrise, the instant the rule readsThe instant the tithi begins or ends

How it was decided

  1. 01

    Aṅga

    Caturthī runs from 17:54 on Fri 6 Mar to 19:18 on Sat 7 Mar.

    2026-03-06T12:23:54Z → 2026-03-07T13:47:44Z

  2. 02

    Kāla

    Moonrise is at 21:15 on the 6th and 22:09 on the 7th.

    moonrise: disc centre, 31′

  3. 03

    Rule

    Caturthī must be current at moonrise. It is on the 6th and is not on the 7th.

    Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 108

  4. 04

    Tie-break

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

    priority: unstated → only-day · margin 10284 s

  5. 05

    Ruling

    Saṅkaṣṭa Caturthī, Ujjain, 2026: Friday 6 March.

    confidence: determinate

Say it like this

In Ujjain, Saṅkaṣṭa Caturthī (Sankatahara Chaturthi) 2026 falls on Friday 6 March. Caturthī runs from 17:54 on Fri 6 Mar to 19:18 on Sat 7 Mar and is current at moonrise that day.

ahargana.org/ujjain/festivals/2026/sankashta-chaturthi?on=2026-03-06 · pac-rp@2026.1

Who says what

AuthorityKindDate
Ahargaṇa, pac-rpThis rulingFri 6 Mar
Ahargaṇa, classicalDisc centre, no refractionFri 6 Mar
compat-drikpanchangComparison profileFri 6 Mar
No institution has a recorded ruling for Ujjain.

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

The rule, as data

/rules/sankashta-chaturthi · ruleset 2026.3-draft

Month
Every lunation
Pakṣa · aṅga
Kṛṣṇa · Caturthī
Kāla
Moonrise
Priority
Unstated
Tie-break
Longer coverage, as a boundary
Reference
CRC 1955, p. 108

“The sukla caturthi in each month is called Ganesa caturthi or Vinayaka caturthi. It is observed at madhyahna. The chief among them are caturthis of Bhadrapada and Magha. Similarly the krsna caturthi in each month is called Sankasta caturthi, to be observed on the day when the tithi is current at moonrise. It is called Angaraka caturthi if it falls on Tuesday.” Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 108. It is called Aṅgāraka Caturthī when it falls on a Tuesday; the weekday is not tested.

The same rule, elsewhere

Twelve places, west to east. Local clock times.

PlaceCaturthīMoonrise 6thCoveredMoonrise 7thCoveredRuled
Los Angeles04:24 → 05:4821:27holds22:27no6 Mar
Chicago06:24 → 07:4821:35holds22:40no6 Mar
Jersey City07:24 → 08:4821:35holds22:40no6 Mar
Port of Spain08:24 → 09:4821:00holds21:48no6 Mar
London12:24 → 13:4821:52holds23:07no6 Mar
Durban14:24 → 15:4819:55holds20:26no6 Mar
Dubai16:24 → 17:4821:12holds22:07no6 Mar
Delhi17:54 → 19:1821:16holds22:12no6 Mar
Kolkata17:54 → 19:1820:22holds21:16no6 Mar
Singapore20:24 → 21:4821:28holds22:12no6 Mar
Sydney23:24 → 00:4820:40no21:08holds7 Mar
Suva00:24 → 01:4820:05no20:40holds7 Mar
Profile · tradition
pac-rp@2026.1 · smarta
Rule
sankashta-chaturthi@2026.3-draft
Engine · kernel
0.1.0 · de440 7eef…ea74
Boundary margin
300 s