Launch / publish — September 2027
The best days to launch a product in September 2027.
Computed in America/New York (Eastern Time); every interval prints its UTC offset. 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 September 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. Fifty is a flat sky; every point above it is computed help, every point below is drag.
The month’s best stretch opens Wed, Sep 8, 9:00 PM EDT and holds until Thu, Sep 9, 4:00 PM EDT, scoring 76.
Amber rows below are the days that stretch touches. Scores compare moments; they do not promise results.
| Date | Day | Score | The computed sky |
|---|---|---|---|
| Sep 1 | Wed | 60 | waxingvoid Wed 9:28 PM – Thu 1:07 AM |
| Sep 2 | Thu | 60 | waxingvoid Wed 9:28 PM – Thu 1:07 AM |
| Sep 3 | Fri | 62 | waxing |
| Sep 4 | Sat | 63 | sextile Jupiter 7:03 PMwaxingvoid Fri 11:06 PM – Sat 3:44 AM |
| Sep 5 | Sun | 54 | waxingvoid Sun 3:05 PM – Mon 10:01 AM |
| Sep 6 | Mon | 46 | square Jupiter 3:30 AMwaxingvoid Sun 3:05 PM – Mon 10:01 AM |
| Sep 7 | Tue | 61 | square Jupiter 3:30 AMwaxing |
| Sep 8 | Wed | 58 | trine Jupiter 3:45 PMwaxingvoid Wed 2:28 PM – Wed 8:11 PM |
| Sep 9 | Thu | 71 | trine Jupiter 3:45 PMwaxing |
| Sep 10 | Fri | 62 | waxing |
| Sep 11 | Sat | 56 | waxingvoid Sat 2:42 AM – Sat 8:49 AM |
| Sep 12 | Sun | 62 | waxing |
| Sep 13 | Mon | 55 | opposition Jupiter 7:21 PMwaxingvoid Mon 3:19 PM – Mon 9:38 PM |
| Sep 14 | Tue | 52 | opposition Jupiter 7:21 PMwaxing |
| Sep 15 | Wed | 54 | waningwaxingvoid Wed 7:03 PM – Thu 8:56 AM |
| Sep 16 | Thu | 29 | waningvoid Wed 7:03 PM – Thu 8:56 AM |
| Sep 17 | Fri | 38 | waning |
| Sep 18 | Sat | 34 | trine Jupiter 4:10 PMwaningvoid Sat 11:40 AM – Sat 6:05 PM |
| Sep 19 | Sun | 48 | trine Jupiter 4:10 PMwaning |
| Sep 20 | Mon | 36 | waningvoid Mon 9:13 PM – Tue 1:05 AM |
| Sep 21 | Tue | 29 | square Jupiter 11:13 PMwaningvoid Mon 9:13 PM – Tue 1:05 AM |
| Sep 22 | Wed | 38 | waning |
| Sep 23 | Thu | 36 | sextile Jupiter 4:07 AMwaningvoid Wed 11:35 PM – Thu 6:02 AM |
| Sep 24 | Fri | 40 | sextile Jupiter 4:07 AMwaning |
| Sep 25 | Sat | 35 | waningvoid Sat 6:03 AM – Sat 9:00 AM |
| Sep 26 | Sun | 38 | waning |
| Sep 27 | Mon | 37 | conjunction Jupiter 8:54 AMwaningvoid Mon 3:55 AM – Mon 10:28 AM |
| Sep 28 | Tue | 34 | conjunction Jupiter 8:54 AMwaningvoid Tue 3:48 PM – Wed 11:30 AM |
| Sep 29 | Wed | 26 | waningwaxingvoid Tue 3:48 PM – Wed 11:30 AM |
| Sep 30 | Thu | 62 | waxing |
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 September 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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Engine 0.6.0 · config v3 · JPL de440s.bsp · tzdata 2026.3. Same month, same config, same kernel — byte-identical numbers. Every claim above resolves to a computed condition; there is nothing else on this page.