Due to network maintenance, some redundant NTP servers were temporarily unavailable during the following time period:

2026-04-15 (Wednesday)
11:45 - 12:00 (JST, approximate)
13:29 - 14:28 (JST, approximate)
15:08 - 16:22 (JST, approximate)

* note : Public NTP Service have continued operation by the remaining servers during the maintenance.