When is the best day to release music in December 2025?

The month's best stretch opens Wed, Dec 24, 9:00 PM EST and holds until Fri, Dec 26, 1:00 PM EST, scoring 76 against a base of 50, computed in America/New York (Eastern Time). Scores compare moments; they do not promise results.

How are these scores computed?

Every hour is rated on four factors — the Moon void-of-course, Mercury retrograde, the Moon's phase, and its next applying aspect for this kind of decision — then averaged per local day under a versioned config. These pages stop there, because a page has no location; the app adds a fifth factor, the Moon's house, once it knows where you are, which is what lets it name an hour rather than a day. Scores start at 50. Higher scores mean more favorable conditions under Orrery’s rules, not a higher chance of success. Check the times against your availability.

What does void-of-course mean?

The interval after the Moon's last exact major aspect in a sign, until it enters the next. Orrery uses a modern definition and assigns a score penalty to starts during this interval.

Launch / publish — December 2025

The best days to release music in December 2025.

Computed in America/New York (Eastern Time). Event and interval times include their Eastern Time zone label (EDT or EST). A different timezone shifts the day boundaries — the sky doesn’t change, but the local days it lands in can.

You’ve got the release on the calendar. Here is December 2025, scored for releasing: every hour rated on the Moon void-of-course, Mercury retrograde, the Moon’s phase, and its next applying aspect for this decision — then averaged per day. Scores start at 50. Higher scores mean more favorable conditions under Orrery’s rules, not a higher chance of success. Check the times against your availability.

The month’s best stretch opens Wed, Dec 24, 9:00 PM EST and holds until Fri, Dec 26, 1:00 PM EST, scoring 76.

Amber rows below are the days that stretch touches. Scores compare moments; they do not promise results.

Rows list factors in that day’s hourly samples. An applying aspect’s exact date can fall on a later day.

Date	Day	Score	The computed sky
Dec 1	Mon	48	Applying Moon–Jupiter sextile · exact Wed, Dec 3, 2025, 12:56 PM ESTApplying Moon–Jupiter square · exact Mon, Dec 1, 2025, 1:14 PM ESTWaxing Moon (sampled hours)Void-of-course Mon, Dec 1, 2025, 1:14 PM EST – Mon, Dec 1, 2025, 10:12 PM EST
Dec 2	Tue	70	Applying Moon–Jupiter sextile · exact Wed, Dec 3, 2025, 12:56 PM ESTWaxing Moon (sampled hours)
Dec 3	Wed	65	Applying Moon–Jupiter sextile · exact Wed, Dec 3, 2025, 12:56 PM ESTWaxing Moon (sampled hours)Void-of-course Wed, Dec 3, 2025, 8:50 PM EST – Wed, Dec 3, 2025, 9:48 PM EST
Dec 4	Thu	57	Waning Moon (sampled hours)Waxing Moon (sampled hours)
Dec 5	Fri	38	Applying Moon–Jupiter conjunction · exact Sun, Dec 7, 2025, 11:51 AM ESTWaning Moon (sampled hours)Void-of-course Fri, Dec 5, 2025, 7:55 PM EST – Fri, Dec 5, 2025, 8:54 PM EST
Dec 6	Sat	50	Applying Moon–Jupiter conjunction · exact Sun, Dec 7, 2025, 11:51 AM ESTWaning Moon (sampled hours)
Dec 7	Sun	43	Applying Moon–Jupiter conjunction · exact Sun, Dec 7, 2025, 11:51 AM ESTWaning Moon (sampled hours)Void-of-course Sun, Dec 7, 2025, 8:44 PM EST – Sun, Dec 7, 2025, 9:48 PM EST
Dec 8	Mon	38	Waning Moon (sampled hours)
Dec 9	Tue	38	Waning Moon (sampled hours)
Dec 10	Wed	42	Applying Moon–Jupiter sextile · exact Thu, Dec 11, 2025, 10:44 PM ESTWaning Moon (sampled hours)Void-of-course Tue, Dec 9, 2025, 11:56 PM EST – Wed, Dec 10, 2025, 2:20 AM EST
Dec 11	Thu	46	Applying Moon–Jupiter sextile · exact Thu, Dec 11, 2025, 10:44 PM ESTWaning Moon (sampled hours)
Dec 12	Fri	32	Applying Moon–Jupiter square · exact Sun, Dec 14, 2025, 9:33 AM ESTWaning Moon (sampled hours)Void-of-course Fri, Dec 12, 2025, 9:50 AM EST – Fri, Dec 12, 2025, 11:04 AM EST
Dec 13	Sat	30	Applying Moon–Jupiter square · exact Sun, Dec 14, 2025, 9:33 AM ESTWaning Moon (sampled hours)
Dec 14	Sun	35	Applying Moon–Jupiter square · exact Sun, Dec 14, 2025, 9:33 AM ESTApplying Moon–Jupiter trine · exact Tue, Dec 16, 2025, 9:46 PM ESTWaning Moon (sampled hours)
Dec 15	Mon	52	Applying Moon–Jupiter trine · exact Tue, Dec 16, 2025, 9:46 PM ESTWaning Moon (sampled hours)
Dec 16	Tue	51	Applying Moon–Jupiter trine · exact Tue, Dec 16, 2025, 9:46 PM ESTWaning Moon (sampled hours)
Dec 17	Wed	37	Waning Moon (sampled hours)Void-of-course Wed, Dec 17, 2025, 10:24 AM EST – Wed, Dec 17, 2025, 11:38 AM EST
Dec 18	Thu	38	Waning Moon (sampled hours)
Dec 19	Fri	40	Waning Moon (sampled hours)Waxing Moon (sampled hours)Void-of-course Fri, Dec 19, 2025, 10:40 PM EST – Fri, Dec 19, 2025, 11:52 PM EST
Dec 20	Sat	50	Applying Moon–Jupiter opposition · exact Sun, Dec 21, 2025, 8:26 PM ESTWaxing Moon (sampled hours)
Dec 21	Sun	52	Applying Moon–Jupiter opposition · exact Sun, Dec 21, 2025, 8:26 PM ESTWaxing Moon (sampled hours)
Dec 22	Mon	61	Waxing Moon (sampled hours)Void-of-course Mon, Dec 22, 2025, 9:43 AM EST – Mon, Dec 22, 2025, 10:51 AM EST
Dec 23	Tue	62	Waxing Moon (sampled hours)
Dec 24	Wed	60	Applying Moon–Jupiter trine · exact Fri, Dec 26, 2025, 12:43 PM ESTWaxing Moon (sampled hours)Void-of-course Wed, Dec 24, 2025, 4:41 PM EST – Wed, Dec 24, 2025, 8:08 PM EST
Dec 25	Thu	76	Applying Moon–Jupiter trine · exact Fri, Dec 26, 2025, 12:43 PM ESTWaxing Moon (sampled hours)
Dec 26	Fri	70	Applying Moon–Jupiter trine · exact Fri, Dec 26, 2025, 12:43 PM ESTWaxing Moon (sampled hours)
Dec 27	Sat	54	Applying Moon–Jupiter square · exact Sun, Dec 28, 2025, 4:58 PM ESTWaxing Moon (sampled hours)Void-of-course Sat, Dec 27, 2025, 2:03 AM EST – Sat, Dec 27, 2025, 3:01 AM EST
Dec 28	Sun	54	Applying Moon–Jupiter square · exact Sun, Dec 28, 2025, 4:58 PM ESTWaxing Moon (sampled hours)Void-of-course Sun, Dec 28, 2025, 9:13 PM EST – Mon, Dec 29, 2025, 6:57 AM EST
Dec 29	Mon	60	Applying Moon–Jupiter sextile · exact Tue, Dec 30, 2025, 6:27 PM ESTWaxing Moon (sampled hours)Void-of-course Sun, Dec 28, 2025, 9:13 PM EST – Mon, Dec 29, 2025, 6:57 AM EST
Dec 30	Tue	68	Applying Moon–Jupiter sextile · exact Tue, Dec 30, 2025, 6:27 PM ESTWaxing Moon (sampled hours)
Dec 31	Wed	61	Waxing Moon (sampled hours)Void-of-course Wed, Dec 31, 2025, 7:24 AM EST – Wed, Dec 31, 2025, 8:13 AM EST

How to read this

Void-of-course— after the Moon’s last exact aspect in a sign, before it enters the next. The classical read: finish things; don’t start them. Exact times are in the void calendar for December 2025. Mercury retrograde — the traditional caution for messages, deals, and signatures; station times to the second are in the retrograde dates. Waxing / waning — growing favors starts, thinning favors finishing. The applying aspect— the Moon’s next exact contact with this decision’s planet, easy angles helping, hard angles dragging. The full rulebook — which conventions Orrery follows and which it refuses — is in Method.

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Engine 0.6.1 · config v3 · JPL de440s.bsp · tzdata 2026.3. Rankings use the computed conditions and the scoring rules published in Method.