春分

1. Origins, structure, and basic meaning

• Structure: 春分(しゅんぶん) is the name of the spring equinox.
• Basic usage: In Japan, it appears in discussions of changing daylight in spring or plans for 春分の日.

2. Common pitfalls and similar expressions

• Day and night length
  • The description concerns day and night becoming similar in length, not an identical number of minutes at every location.
• Date by year
  • The date of 春分の日 varies from year to year.