📿Upanayan (sacred thread)
Upanayan Muhurat, December 2027
December 2027 has 31 days. 16 of them fall inside Dhanu Kharmas (next), and after the tithi, vara, nakshatra, yoga and karana filters 2 survive for an upanayan.
2
pass every filter
4
one rule short
16
in a closed period
Dhanu Kharmas (next) — 16 December to 15 January · 16 days of this month
The 2 days that qualify
Shukla Panchami · Shravana nakshatra · Dhruva yoga · Balava karana
Sunrise 06:57 · sunset 17:23 · Abhijit 11:49-12:31 · Rahu Kaal 10:52-12:10
Shukla Ekadashi · Revati nakshatra · Variyan yoga · Vanija karana
Sunrise 07:01 · sunset 17:24 · Abhijit 11:52-12:33 · Rahu Kaal 13:31-14:48
The half of the year, and the days that carried a favoured star
The thread ceremony is the one rite here with a preference about the half of the year, and Uttarayana has computed endpoints rather than conventional ones.
In 2027 Uttarayana runs 14 January 2027 to 17 July 2027, taken from the computed Makar and Karka ingresses rather than from the calendar dates usually quoted. December 2027 lies wholly outside it, in the southward half.
| Day | Nakshatra | Tithi | Verdict |
|---|---|---|---|
| 2 Thu | Uttara Ashadha | Shukla Chaturthi | Tithi: Shukla Chaturthi is not among the favoured tithis |
| 8 Wed | Uttara Bhadrapada | Shukla Dashami | Yoga: Vyatipata is one of the nine ashubha yogas |
| 9 Thu | Revati | Shukla Ekadashi | passes everything |
| 10 Fri | Ashwini | Shukla Dwadashi | Tithi: Shukla Dwadashi is not among the favoured tithis |
| 13 Mon | Rohini | Purnima | Karana: Vishti (Bhadra) at sunrise |
| 14 Tue | Mrigashira | Krishna Pratipada | Tithi: Krishna Pratipada is not among the favoured tithis |
| 17 Fri | Pushya | Krishna Chaturthi | Dhanu Kharmas (next) |
| 20 Mon | Uttara Phalguni | Krishna Ashtami | Dhanu Kharmas (next) |
| 21 Tue | Hasta | Krishna Navami | Dhanu Kharmas (next) |
| 22 Wed | Chitra | Krishna Dashami | Dhanu Kharmas (next) |
| 25 Sat | Anuradha | Krishna Trayodashi | Dhanu Kharmas (next) |
| 30 Thu | Uttara Ashadha | Shukla Tritiya | Dhanu Kharmas (next) |
One rule short — 4 days
They divide by the rule they missed: 1 on vara, 1 on nakshatra, 1 on yoga, 1 on karana.
- 5 SunShukla Saptami, Dhanishta — short on vara: Sunday is not among the preferred weekdays
- 8 WedShukla Dashami, Uttara Bhadrapada — short on yoga: Vyatipata is one of the nine ashubha yogas
- 13 MonPurnima, Rohini — short on karana: Vishti (Bhadra) at sunrise
- 15 WedKrishna Dwitiya, Ardra — short on nakshatra: Ardra is not in this occasion's set
Which rule did the excluding
16 days of December were shut by a closure and never examined. Of the 15 that were, 2 passed everything, 4 missed by a single rule, and 9 missed by two or more, in a month where one of this rite's 14 accepted nakshatras ran on 17 days. Tithi is the binding constraint here, ruling out 7 of the 15.
| Rule | What it asks for | Days it excluded | On its own |
|---|---|---|---|
| Tithi | 7 of the fifteen — Dwitiya, Tritiya, Panchami, Saptami, Dashami, Ekadashi, Trayodashi and Purnima, Ashtami excluded | 7 | — |
| Vara | Monday, Wednesday, Thursday, Friday | 6 | 1 |
| Nakshatra | 14 of the 27 | 6 | 1 |
| Yoga | none of the nine ashubha yogas | 5 | 1 |
| Karana | not Vishti (Bhadra) at sunrise | 3 | 1 |
Read the last column as a counterfactual. 1 day of December fail on vara and nothing else — 5 — so a family willing to set aside that one rule has that day available. No other single relaxation buys as much.
Nakshatra supply. 14 of the 27 are accepted for this rite, and they fell on 17 days of December 2027, with Uttara Ashadha and Shravana and Dhanishta coming round twice.
Weekday supply. December 2027 holds 19 days of the right weekday (Monday, Wednesday, Thursday, Friday), 9 of them outside a closure, and 2 survive the rest of the filter — against 17 days supplied by the 14 nakshatras. Unlike the sky's four limbs, this is the one the calendar fixes.
The Uttarayana half of the year is strongly preferred, and the rite has age rules of its own that take precedence over the panchang.
Every day of December 2027, and what ruled it out
All 31 days with the verdict and the reason, each linked to its own panchang page: 16 shut before being read, 15 examined against 14 nakshatras, 2 through.
| Day | Verdict |
|---|---|
| 1 Wed | Purva Ashadha is not in this occasion's set; Ganda is one of the nine ashubha yogas |
| 2 Thu | Shukla Chaturthi is not among the favoured tithis; Vishti (Bhadra) at sunrise |
| 3 Fri | passes every filter |
| 4 Sat | Shukla Shashthi is not among the favoured tithis; Saturday is not among the preferred weekdays; Vyaghata is one of the nine ashubha yogas |
| 5 Sun | Sunday is not among the preferred weekdays |
| 6 Mon | Shukla Ashtami is not among the favoured tithis; Shatabhisha is not in this occasion's set; Vajra is one of the nine ashubha yogas; Vishti (Bhadra) at sunrise |
| 7 Tue | Shukla Navami is not among the favoured tithis; Tuesday is not among the preferred weekdays; Purva Bhadrapada is not in this occasion's set |
| 8 Wed | Vyatipata is one of the nine ashubha yogas |
| 9 Thu | passes every filter |
| 10 Fri | Shukla Dwadashi is not among the favoured tithis; Parigha is one of the nine ashubha yogas |
| 11 Sat | Saturday is not among the preferred weekdays; Bharani is not in this occasion's set |
| 12 Sun | Shukla Chaturdashi is not among the favoured tithis; Sunday is not among the preferred weekdays; Krittika is not in this occasion's set |
| 13 Mon | Vishti (Bhadra) at sunrise |
| 14 Tue | Krishna Pratipada is not among the favoured tithis; Tuesday is not among the preferred weekdays |
| 15 Wed | Ardra is not in this occasion's set |
| 16 Thu | Dhanu Kharmas (next); Vishti (Bhadra) at sunrise |
| 17 Fri | Dhanu Kharmas (next); Krishna Chaturthi is not among the favoured tithis; Vaidhriti is one of the nine ashubha yogas |
| 18 Sat | Dhanu Kharmas (next); Saturday is not among the preferred weekdays; Magha is not in this occasion's set; Vishkambha is one of the nine ashubha yogas |
| 19 Sun | Dhanu Kharmas (next); Sunday is not among the preferred weekdays; Purva Phalguni is not in this occasion's set; Vishti (Bhadra) at sunrise |
| 20 Mon | Dhanu Kharmas (next); Krishna Ashtami is not among the favoured tithis |
| 21 Tue | Dhanu Kharmas (next); Krishna Navami is not among the favoured tithis; Tuesday is not among the preferred weekdays |
| 22 Wed | Dhanu Kharmas (next) |
| 23 Thu | Dhanu Kharmas (next); Swati is not in this occasion's set; Atiganda is one of the nine ashubha yogas |
| 24 Fri | Dhanu Kharmas (next); Krishna Dwadashi is not among the favoured tithis; Vishakha is not in this occasion's set |
| 25 Sat | Dhanu Kharmas (next); Saturday is not among the preferred weekdays |
| 26 Sun | Dhanu Kharmas (next); Krishna Chaturdashi is not among the favoured tithis; Sunday is not among the preferred weekdays; Jyeshtha is not in this occasion's set; Shula is one of the nine ashubha yogas; Vishti (Bhadra) at sunrise |
| 27 Mon | Dhanu Kharmas (next); Amavasya is not among the favoured tithis; Moola is not in this occasion's set; Ganda is one of the nine ashubha yogas |
| 28 Tue | Dhanu Kharmas (next); Shukla Pratipada is not among the favoured tithis; Tuesday is not among the preferred weekdays; Purva Ashadha is not in this occasion's set |
| 29 Wed | Dhanu Kharmas (next); Purva Ashadha is not in this occasion's set |
| 30 Thu | Dhanu Kharmas (next); Vyaghata is one of the nine ashubha yogas |
| 31 Fri | Dhanu Kharmas (next) |
December 2027 against the rest of 2027
December 2027 contributes 2 of the 17 days 2027 offers for an upanayan — 5th of the twelve, level with 1 other month, and exactly the median across the seven occasions this month. 5 months of the twelve offer nothing, 3 of them because the month is shut outright.
The other six occasions in December 2027
Same 31 days, seven different filters: in December they return between 1 and 4 qualifying days, median 2. This rite’s 2 is the median itself, and the reason is the 14-nakshatra set and the 3 closures it carries.
Questions about December 2027
How many days in December 2027 are good for upanayan?
2 days of the 31 pass every filter: 3 December (Friday), 9 December (Thursday). They are not evenly spread — the widest gap between two of them is 6 days. 4 further days miss on one rule alone and are listed with the rule they missed.
Is any part of December 2027 closed for auspicious beginnings?
Dhanu Kharmas (next), 16 December to 15 January. The Sun is in Sagittarius. Auspicious beginnings are deferred through the whole transit.
Why do other sites list more upanayan dates in December 2027?
The closures alone take 16 of this month's 31 days — Dhanu Kharmas (next) applies here — and a list assembled without them has 16 more days to draw on than this one does. Of the 15 that were examined, tithi removed 7.
Does the half of the year matter for upanayan?
Yes — Uttarayana, the Sun's northward course, is strongly preferred for the thread ceremony. In 2027 it opens at the Makar Sankranti ingress on 14 January 2027 and closes at the Karka ingress on 17 July 2027. December 2027 lies wholly outside it, in Dakshinayana.
Next
- Upanayan across all twelve months
- The same filter, run interactively
- Why each closed period is closed
- The December panchang in full
Computed at sunrise for New Delhi from the JPL DE421 ephemeris; all five limbs change through the day, so a day listed here can turn at noon.
Ask a pandit for the December muhurat