Mark your calendar for the next September 2023 New Moon. The next September new moon is Thursday September 14, 2023 9:40 PM EDT or September 15, 2023 1:40 AM UTC based on the data provided by NASA. It will be the ninth new moon on the 2023 New Moon schedule.
A new moon is the first lunar phase that happens about once a month or, 29.53 days on average. The moon itself is not visible though you may be able to “see” it because it blocks the visibility of the stars behind it.
Ready to dive a little deeper into the September 2023 New Moon? Learn more about the moon’s nicknames and other facts.
The dates and times provided by NASA in United States Eastern Time (ET) account for both Eastern Standard Time (EST) and Eastern Daylight Time (EDT) for part of the year in the United States. Also below is the Coordinated Universal Time (UTC) time. This was previously referred to as Greenwich Mean Time (GMT). Since your local time zone may be different, the exact dates may shift slightly for your calendar.
What is the name of the September 2023 New Moon?
One name for the September 2023 New Moon is the New Harvest Moon. The nickname is inspired by nature and agriculture as well as the timing of the Fall Equinox. In 2023 the September full moon will be called the Full Harvest Moon as it will be closer to the start of Autumn than October’s. The new moon on September 14th will be the start of the lunar cycle for the September full moon.
Which season includes the September New Moon?
In 2023, the September New Moon will be the last new moon of the Summer 2023 season. It will be the last new moon before the Autumnal Equinox in 2023.
The Autumnal Equinox marks the beginning of astronomical autumn and the end of astronomical summer in the Northern Hemisphere.
In 2023, the Autumnal Equinox will be Saturday September 23, 2023 2:50 AM EDT or 6:50 AM UTC.
Depending on the year, the September New Moon could occur either at the end of Summer or at the beginning of Autumn depending on how the new moon lines up with the Autumnal Equinox. The new moon in September may be the start of the lunar cycle for the September or October Full moon.
When is the full moon for the 2023 New Harvest Moon?
The full moon for the September new moon will also be in September 2023. The Full Harvest Moon will be on Friday September 29, 2023 5:57 AM EDT or 9:57 AM UTC and will be the full moon in Aries.
Two interesting notes about the September New Moon in 2023:
- This will be one of the few new moon-full moon cycles that will be in the same month.
- The new moon will be near the end of the summer season. The full moon is at the beginning of autumn.
September 2023 Moon Phases in Eastern Time and UTC
Below are the lunar phases for September 2023 including the new moon, first quarter, full moon, and last quarter that are on the schedule for each month. The date and times are based on both the United States Eastern Time Zone and UTC, adjusted for daylight saving time.
|Lunar Phase||US Eastern Date & Time||UTC Date & Time|
|September Last Quarter||September 6, 2023 6:21 PM EDT||September 6, 2023 10:21 PM UTC|
|September New Moon||September 14, 2023 9:40 PM EDT||September 15, 2023 1:40 AM UTC|
|September First Quarter||September 22, 2023 3:32 PM EDT||September 22, 2023 7:32 PM UTC|
|September Full Moon||September 29, 2023 5:57 AM EDT||September 29, 2023 9:57 AM UTC|
Future September New Moons
Wondering when in the future the new moons will occur in September beyond September 2023 new moon? Here’s a list through 2029.
|Year||Day of the week||Future September New Moons||UTC Date|
|2023||Thursday||September 14, 2023 9:40 PM EDT||September 15, 2023 1:40 AM UTC|
|2024||Monday||September 2, 2024 9:55 PM EDT||September 3, 2024 1:55 AM UTC|
|2025||Sunday||September 21, 2025 3:54 PM EDT||September 21, 2025 7:54 PM UTC|
|2026||Thursday||September 10, 2026 11:27 PM EDT||September 11, 2026 3:27 AM UTC|
|2027||Tuesday||August 31, 2027 1:41 PM EDT||August 31, 2027 5:41 PM UTC|
|2028||Monday||September 18, 2028 2:24 PM EDT||September 18, 2028 6:24 PM UTC|
|2029||Saturday||September 8, 2029 6:44 AM EDT||September 8, 2029 10:44 AM UTC|
Past September New Moons
And what about the past? Here is when the new moon occurred in the past for September.
|Year||Day of the week||Past September New Moons||UTC Date|
|2022||Sunday||September 25, 2022 5:54 PM EDT||September 25, 2022 9:54 PM UTC|
|2021||Monday||September 6, 2021 8:52 PM EDT||September 7, 2021 12:52 AM UTC|
|2020||Thursday||September 17, 2020 7:00 AM EDT||September 17, 2020 11:00 AM UTC|
|2019||Saturday||September 28, 2019 2:26 PM EDT||September 28, 2019 6:26 PM UTC|
|2018||Sunday||September 9, 2018 2:01 PM EDT||September 9, 2018 6:01 PM UTC|
|2017||Wednesday||September 20, 2017 1:30 AM EDT||September 20, 2017 5:30 AM UTC|
Frequently Asked Questions
Have additional questions about the September New Moons? Here are a few of the frequently asked questions to help you.
When was the September 2022 new moon?
The September 2022 New Moon was on Sunday September 25, 2022 5:54 PM EDT or 9:54 PM UTC. This was the first new moon of the Autumn 2022 season as the September 2022 new moon occurred after the Autumnal Equinox.
When was the September 2021 new moon?
The September 2021 New Moon was on Monday September 6, 2021 8:52 PM EDT or September 7, 2021 12:52 AM UTC. This was the last new moon of the Summer 2021 season as the September 2021 new moon occurred before the Autumnal Equinox.
When was the September 2020 new moon?
The September 2020 New Moon was on Thursday September 17, 2020 7:00 AM EDT or 11:00 AM UTC. This was the last new moon of the Summer 2020 season as it occurred before the Autumnal Equinox