Launch / publish — May 2026
The best days to launch a product in May 2026.
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 2026, 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 Wed, May 27, 9:00 PM EDT and holds until Fri, May 29, 9:00 PM EDT, 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 |
|---|---|---|---|
| May 1 | Fri | 66 | Applying Moon–Jupiter trine · exact Sat, May 2, 2026, 4:47 AM EDTWaning Moon (sampled hours)Waxing Moon (sampled hours) |
| May 2 | Sat | 21 | Applying Moon–Jupiter trine · exact Sat, May 2, 2026, 4:47 AM EDTWaning Moon (sampled hours)Void-of-course Sat, May 2, 2026, 4:47 AM EDT – Sun, May 3, 2026, 2:33 AM EDT |
| May 3 | Sun | 35 | Waning Moon (sampled hours)Void-of-course Sat, May 2, 2026, 4:47 AM EDT – Sun, May 3, 2026, 2:33 AM EDT |
| May 4 | Mon | 32 | Waning Moon (sampled hours)Void-of-course Mon, May 4, 2026, 5:33 PM EDT – Tue, May 5, 2026, 3:06 PM EDT |
| May 5 | Tue | 17 | Applying Moon–Jupiter opposition · exact Thu, May 7, 2026, 7:11 AM EDTWaning Moon (sampled hours)Void-of-course Mon, May 4, 2026, 5:33 PM EDT – Tue, May 5, 2026, 3:06 PM EDT |
| May 6 | Wed | 26 | Applying Moon–Jupiter opposition · exact Thu, May 7, 2026, 7:11 AM EDTWaning Moon (sampled hours) |
| May 7 | Thu | 20 | Applying Moon–Jupiter opposition · exact Thu, May 7, 2026, 7:11 AM EDTWaning Moon (sampled hours)Void-of-course Thu, May 7, 2026, 10:18 AM EDT – Fri, May 8, 2026, 3:27 AM EDT |
| May 8 | Fri | 34 | Waning Moon (sampled hours)Void-of-course Thu, May 7, 2026, 10:18 AM EDT – Fri, May 8, 2026, 3:27 AM EDT |
| May 9 | Sat | 38 | Waning Moon (sampled hours) |
| May 10 | Sun | 31 | Applying Moon–Jupiter trine · exact Tue, May 12, 2026, 3:29 AM EDTWaning Moon (sampled hours)Void-of-course Sun, May 10, 2026, 1:08 AM EDT – Sun, May 10, 2026, 1:39 PM EDT |
| May 11 | Mon | 52 | Applying Moon–Jupiter trine · exact Tue, May 12, 2026, 3:29 AM EDTWaning Moon (sampled hours) |
| May 12 | Tue | 25 | Applying Moon–Jupiter square · exact Thu, May 14, 2026, 7:40 AM EDTApplying Moon–Jupiter trine · exact Tue, May 12, 2026, 3:29 AM EDTWaning Moon (sampled hours)Void-of-course Tue, May 12, 2026, 6:04 AM EDT – Tue, May 12, 2026, 8:03 PM EDT |
| May 13 | Wed | 30 | Applying Moon–Jupiter square · exact Thu, May 14, 2026, 7:40 AM EDTWaning Moon (sampled hours) |
| May 14 | Thu | 30 | Applying Moon–Jupiter sextile · exact Sat, May 16, 2026, 8:39 AM EDTApplying Moon–Jupiter square · exact Thu, May 14, 2026, 7:40 AM EDTWaning Moon (sampled hours)Void-of-course Thu, May 14, 2026, 5:32 PM EDT – Thu, May 14, 2026, 10:31 PM EDT |
| May 15 | Fri | 46 | Applying Moon–Jupiter sextile · exact Sat, May 16, 2026, 8:39 AM EDTWaning Moon (sampled hours) |
| May 16 | Sat | 47 | Applying Moon–Jupiter sextile · exact Sat, May 16, 2026, 8:39 AM EDTWaning Moon (sampled hours)Waxing Moon (sampled hours)Void-of-course Sat, May 16, 2026, 9:02 PM EDT – Sat, May 16, 2026, 10:22 PM EDT |
| May 17 | Sun | 54 | Waxing Moon (sampled hours)Void-of-course Sun, May 17, 2026, 3:35 PM EDT – Mon, May 18, 2026, 9:46 PM EDT |
| May 18 | Mon | 40 | Applying Moon–Jupiter conjunction · exact Wed, May 20, 2026, 9:26 AM EDTWaxing Moon (sampled hours)Void-of-course Sun, May 17, 2026, 3:35 PM EDT – Mon, May 18, 2026, 9:46 PM EDT |
| May 19 | Tue | 74 | Applying Moon–Jupiter conjunction · exact Wed, May 20, 2026, 9:26 AM EDTWaxing Moon (sampled hours) |
| May 20 | Wed | 53 | Applying Moon–Jupiter conjunction · exact Wed, May 20, 2026, 9:26 AM EDTWaxing Moon (sampled hours)Void-of-course Wed, May 20, 2026, 9:26 AM EDT – Wed, May 20, 2026, 10:47 PM EDT |
| May 21 | Thu | 57 | Waxing Moon (sampled hours)Void-of-course Thu, May 21, 2026, 6:05 PM EDT – Sat, May 23, 2026, 2:57 AM EDT |
| May 22 | Fri | 37 | Waxing Moon (sampled hours)Void-of-course Thu, May 21, 2026, 6:05 PM EDT – Sat, May 23, 2026, 2:57 AM EDT |
| May 23 | Sat | 66 | Applying Moon–Jupiter sextile · exact Sun, May 24, 2026, 8:54 PM EDTWaxing Moon (sampled hours)Void-of-course Thu, May 21, 2026, 6:05 PM EDT – Sat, May 23, 2026, 2:57 AM EDT |
| May 24 | Sun | 66 | Applying Moon–Jupiter sextile · exact Sun, May 24, 2026, 8:54 PM EDTWaxing Moon (sampled hours)Void-of-course Sun, May 24, 2026, 8:54 PM EDT – Mon, May 25, 2026, 10:34 AM EDT |
| May 25 | Mon | 46 | Applying Moon–Jupiter square · exact Wed, May 27, 2026, 7:32 AM EDTWaxing Moon (sampled hours)Void-of-course Sun, May 24, 2026, 8:54 PM EDT – Mon, May 25, 2026, 10:34 AM EDT |
| May 26 | Tue | 54 | Applying Moon–Jupiter square · exact Wed, May 27, 2026, 7:32 AM EDTWaxing Moon (sampled hours) |
| May 27 | Wed | 48 | Applying Moon–Jupiter square · exact Wed, May 27, 2026, 7:32 AM EDTApplying Moon–Jupiter trine · exact Fri, May 29, 2026, 8:04 PM EDTWaxing Moon (sampled hours)Void-of-course Wed, May 27, 2026, 7:32 AM EDT – Wed, May 27, 2026, 8:52 PM EDT |
| May 28 | Thu | 76 | Applying Moon–Jupiter trine · exact Fri, May 29, 2026, 8:04 PM EDTWaxing Moon (sampled hours) |
| May 29 | Fri | 71 | Applying Moon–Jupiter trine · exact Fri, May 29, 2026, 8:04 PM EDTWaxing Moon (sampled hours)Void-of-course Fri, May 29, 2026, 8:04 PM EDT – Sat, May 30, 2026, 8:44 AM EDT |
| May 30 | Sat | 53 | Waxing Moon (sampled hours)Void-of-course Fri, May 29, 2026, 8:04 PM EDT – Sat, May 30, 2026, 8:44 AM EDT |
| May 31 | Sun | 28 | Waning Moon (sampled hours)Waxing Moon (sampled hours)Void-of-course Sun, May 31, 2026, 9:21 AM EDT – Mon, Jun 1, 2026, 9:19 PM EDT |
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 2026. 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.