| Created |
| Associated with 昭和の夏時刻 |
| Associated with 昭和のサマータイム |
| Associated with 昭和のサンマタイム |
| Associated with 昭和のサンマー・タイム |
| Associated with 昭和のサンマータイム |
| Associated with 昭和の夏時間 |
| Associated with 日本夏時間 |
| Associated with JDT |
| Associated with 日本の夏時刻 |
| Associated with 日本夏時刻 |
| Associated with 琉球夏時間 |
| Associated with 琉球の夏時刻 |
| Associated with イワシ |
| Associated with イワシタイム |
| Associated with Japan Daylight-saving Time |