When is the best day to launch a business in May 2027?

The month's best stretch opens Sat, May 15, 7:00 PM EDT and holds until Mon, May 17, 5:00 AM EDT, scoring 70 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 — May 2027

The best days to launch a business in May 2027.

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 launch on the calendar. Here is May 2027, scored for launching: 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 Sat, May 15, 7:00 PM EDT and holds until Mon, May 17, 5:00 AM EDT, scoring 70.

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
May 1	Sat	31	Waning Moon (sampled hours)Void-of-course Sat, May 1, 2027, 4:47 PM EDT – Sun, May 2, 2027, 9:42 PM EDT
May 2	Sun	16	Applying Moon–Jupiter trine · exact Tue, May 4, 2027, 6:04 AM EDTWaning Moon (sampled hours)Void-of-course Sat, May 1, 2027, 4:47 PM EDT – Sun, May 2, 2027, 9:42 PM EDT
May 3	Mon	52	Applying Moon–Jupiter trine · exact Tue, May 4, 2027, 6:04 AM EDTWaning Moon (sampled hours)
May 4	Tue	41	Applying Moon–Jupiter trine · exact Tue, May 4, 2027, 6:04 AM EDTWaning Moon (sampled hours)Void-of-course Tue, May 4, 2027, 10:08 PM EDT – Wed, May 5, 2027, 3:52 AM EDT
May 5	Wed	27	Applying Moon–Jupiter square · exact Thu, May 6, 2027, 10:35 AM EDTWaning Moon (sampled hours)Void-of-course Tue, May 4, 2027, 10:08 PM EDT – Wed, May 5, 2027, 3:52 AM EDT
May 6	Thu	51	Applying Moon–Jupiter square · exact Thu, May 6, 2027, 10:35 AM EDTWaning Moon (sampled hours)Waxing Moon (sampled hours)
May 7	Fri	62	Applying Moon–Jupiter sextile · exact Sat, May 8, 2027, 1:04 PM EDTWaxing Moon (sampled hours)Void-of-course Fri, May 7, 2027, 2:48 AM EDT – Fri, May 7, 2027, 7:06 AM EDT
May 8	Sat	67	Applying Moon–Jupiter sextile · exact Sat, May 8, 2027, 1:04 PM EDTWaxing Moon (sampled hours)
May 9	Sun	59	Waxing Moon (sampled hours)Void-of-course Sun, May 9, 2027, 5:54 AM EDT – Sun, May 9, 2027, 8:59 AM EDT
May 10	Mon	62	Waxing Moon (sampled hours)
May 11	Tue	60	Applying Moon–Jupiter conjunction · exact Wed, May 12, 2027, 6:03 PM EDTWaxing Moon (sampled hours)Void-of-course Tue, May 11, 2027, 3:45 AM EDT – Tue, May 11, 2027, 11:00 AM EDT
May 12	Wed	72	Applying Moon–Jupiter conjunction · exact Wed, May 12, 2027, 6:03 PM EDTWaxing Moon (sampled hours)
May 13	Thu	61	Waxing Moon (sampled hours)Void-of-course Thu, May 13, 2027, 1:31 PM EDT – Thu, May 13, 2027, 2:05 PM EDT
May 14	Fri	62	Waxing Moon (sampled hours)
May 15	Sat	53	Applying Moon–Jupiter sextile · exact Mon, May 17, 2027, 4:04 AM EDTWaxing Moon (sampled hours)Void-of-course Sat, May 15, 2027, 8:47 AM EDT – Sat, May 15, 2027, 6:33 PM EDT
May 16	Sun	70	Applying Moon–Jupiter sextile · exact Mon, May 17, 2027, 4:04 AM EDTWaxing Moon (sampled hours)
May 17	Mon	50	Applying Moon–Jupiter sextile · exact Mon, May 17, 2027, 4:04 AM EDTWaxing Moon (sampled hours)Void-of-course Mon, May 17, 2027, 10:55 AM EDT – Tue, May 18, 2027, 12:33 AM EDT
May 18	Tue	53	Applying Moon–Jupiter square · exact Wed, May 19, 2027, 11:38 AM EDTWaxing Moon (sampled hours)Void-of-course Mon, May 17, 2027, 10:55 AM EDT – Tue, May 18, 2027, 12:33 AM EDT
May 19	Wed	58	Applying Moon–Jupiter square · exact Wed, May 19, 2027, 11:38 AM EDTWaxing Moon (sampled hours)
May 20	Thu	52	Applying Moon–Jupiter trine · exact Fri, May 21, 2027, 9:30 PM EDTWaning Moon (sampled hours)Waxing Moon (sampled hours)Void-of-course Thu, May 20, 2027, 6:59 AM EDT – Thu, May 20, 2027, 8:27 AM EDT
May 21	Fri	51	Applying Moon–Jupiter trine · exact Fri, May 21, 2027, 9:30 PM EDTWaning Moon (sampled hours)
May 22	Sat	23	Waning Moon (sampled hours)Void-of-course Sat, May 22, 2027, 4:58 AM EDT – Sat, May 22, 2027, 6:42 PM EDT
May 23	Sun	38	Waning Moon (sampled hours)
May 24	Mon	32	Waning Moon (sampled hours)Void-of-course Mon, May 24, 2027, 5:29 PM EDT – Tue, May 25, 2027, 7:04 AM EDT
May 25	Tue	22	Applying Moon–Jupiter opposition · exact Wed, May 26, 2027, 11:20 PM EDTWaning Moon (sampled hours)Void-of-course Mon, May 24, 2027, 5:29 PM EDT – Tue, May 25, 2027, 7:04 AM EDT
May 26	Wed	26	Applying Moon–Jupiter opposition · exact Wed, May 26, 2027, 11:20 PM EDTWaning Moon (sampled hours)
May 27	Thu	37	Waning Moon (sampled hours)Void-of-course Thu, May 27, 2027, 6:23 PM EDT – Thu, May 27, 2027, 7:55 PM EDT
May 28	Fri	38	Waning Moon (sampled hours)
May 29	Sat	21	Waning Moon (sampled hours)Void-of-course Sat, May 29, 2027, 7:03 AM EDT – Sun, May 30, 2027, 6:39 AM EDT
May 30	Sun	41	Applying Moon–Jupiter trine · exact Mon, May 31, 2027, 8:27 PM EDTWaning Moon (sampled hours)Void-of-course Sat, May 29, 2027, 7:03 AM EDT – Sun, May 30, 2027, 6:39 AM EDT
May 31	Mon	50	Applying Moon–Jupiter trine · exact Mon, May 31, 2027, 8:27 PM EDTWaning Moon (sampled hours)

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 May 2027. 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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