Past observed and future calculated equinoxes in Japan Standard Time.[1]
| Year | Vernal | Day of week | Autumnal | Day of week |
|---|---|---|---|---|
| 2013 | March 20 | Wednesday | September 23 | Monday |
| 2014 | March 21 | Friday | September 23 | Tuesday |
| 2015 | March 21 | Saturday | September 23 | Wednesday |
| 2016 | March 20 | Sunday | September 22 | Thursday |
| 2017 | March 20 | Monday | September 23 | Saturday |
| 2018 | March 21 | Wednesday | September 23 | Sunday |
| 2019 | March 21 | Thursday | September 23 | Monday |
| 2020 | March 20 | Friday | September 22 | Tuesday |
| 2021 | March 20 | Saturday | September 23 | Thursday |
| 2022 | March 21 | Monday | September 23 | Friday |
| 2023 | March 21 | Tuesday | September 23 | Saturday |
| 2024 | March 20 | Wednesday | September 22 | Sunday |
| 2025 | March 20 | Thursday | September 23 | Tuesday |
| 2026 | March 20 | Friday | September 23 | Wednesday |
| 2027 | March 21 | Sunday | September 23 | Thursday |
| 2028 | March 20 | Monday | September 22 | Friday |
| 2029 | March 20 | Tuesday | September 23 | Sunday |
| 2030 | March 20 | Wednesday | September 23 | Monday |