If you are deciding whether a puja, vrata step, sankalpa, or family observance belongs to Trayodashi or Chaturdashi on September 24, the decisive detail comes late in the evening. The date does not remain under one tithi from midnight to midnight.
For this Thursday, Shukla Paksha Trayodashi continues until 10:03 PM, after which Shukla Paksha Chaturdashi begins. Use that transition as your starting point, then confirm the clock time for your own location before fixing a religious observance.
September 24 Panchang at a glance
| Calendar element | September 24, 2026 |
|---|---|
| Weekday | Thursday |
| Paksha | Shukla Paksha, the waxing or bright half of the lunar month |
| Tithi until 10:03 PM | Trayodashi, the thirteenth tithi |
| Tithi after 10:03 PM | Chaturdashi, the fourteenth tithi |
The practical reading is simple: activities that specifically require Trayodashi must be completed within its applicable local observance window. Activities that require Chaturdashi should not be assigned merely because September 24 appears on the civil calendar; Chaturdashi begins only after the stated transition.
Why the tithi changes before the civil date ends

A civil date runs from midnight to midnight. A tithi is a lunar division determined by the changing relationship between the Sun and Moon, so it can begin or end at any hour. This is why a single Gregorian date can contain parts of two tithis.
On September 24, the meaningful boundary is 10:03 PM. Before that boundary, the operative tithi is Trayodashi. After it, the operative tithi is Chaturdashi. Do not read the heading “September 24 Panchang” as a promise that Trayodashi lasts through the entire night.
This distinction matters most when a practice is tied to a particular tithi rather than merely to a weekday or civil date. If you are making a sankalpa, write down both the date and the tithi that actually prevails when the rite begins. That small habit prevents confusion when a ceremony extends across a tithi boundary.
How to use the 10:03 PM transition correctly

A published clock time is useful only when its locality and time zone match yours. The astronomical transition is one event, but the wall-clock reading differs across time zones. Regional calendar conventions can also affect how a religious observance is assigned to a civil date.
Before you schedule anything tithi-sensitive, take these steps:
- Set your Panchang or calendar to the city where the observance will physically take place.
- Confirm that you are viewing Thursday, September 24, 2026 in that city’s local time.
- Check the local end time of Shukla Paksha Trayodashi rather than copying 10:03 PM without a location check.
- Read the rule for the specific vrata or rite. Some observances depend on the tithi at sunrise, while others depend on its presence during a prescribed worship period.
- If you will worship at a temple, follow the temple’s announced calendar and schedule. Its priests may be applying a particular sampradaya’s observance rule.
If your local Panchang confirms the same 10:03 PM end time, there is no ambiguity about the basic sequence: Trayodashi applies before that moment and Chaturdashi after it. The remaining question is whether your intended practice uses the tithi prevailing at the actual time of worship or a separate religious rule for assigning the observance day.
What this daily entry can and cannot decide

This entry is enough to answer one narrow question: which tithi prevails on either side of 10:03 PM on September 24. It is not, by itself, a complete muhurta.
Do not label the entire period before 10:03 PM as automatically auspicious. A full Panchang decision may require the weekday, nakshatra, yoga, karana, local sunrise and sunset, restricted periods, the nature of the proposed work, and the rules followed by your family or sampradaya. Those details are not established here.
That limitation changes how you should plan:
- For ordinary home worship: use the tithi sequence as orientation, then follow your established household practice.
- For a vrata: verify whether its rule depends on sunrise, an evening worship period, or the moment of tithi completion.
- For a temple ceremony: confirm the temple’s published time before travelling or arranging offerings.
- For marriage, griha pravesh, a major samskara, or another formal muhurta: do not select a time from the tithi alone. Obtain a complete location-specific calculation.
- For a late-night rite: remember that a ceremony beginning after the confirmed transition belongs to Chaturdashi, even though the civil date may still be September 24.
Key takeaways
- September 24, 2026 is a Thursday.
- Shukla Paksha Trayodashi lasts until 10:03 PM in the cited calendar entry.
- Shukla Paksha Chaturdashi begins after 10:03 PM.
- A tithi does not necessarily follow the midnight-to-midnight boundaries of a civil date.
- Confirm the transition in a Panchang configured for the place of worship before fixing a vrata, puja, or sankalpa.
- Do not treat a favorable tithi label as a complete muhurta calculation.
Choose the city first, verify the local Trayodashi end time, and then apply the rule of the observance you actually intend to perform. That sequence will give you a more dependable answer than relying on the date heading alone.
References


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