[1] 20151129 Time over HTTPS specification — PHKs Bikeshed (2019-09-01 17:24:12 +09:00) http://phk.freebsd.dk/time/20151129/

[2] 20151212 Reference implementation “Time over HTTPS” — PHKs Bikeshed (2019-09-01 17:24:12 +09:00) http://phk.freebsd.dk/time/20151212/

[3] サーバーの時刻を伝える time wellknown uri を実装してみた (Shogo Ichinose著, 2019-08-21 19:53:53 +09:00) https://shogo82148.github.io/blog/2019/05/27/time-over-https/

[4] shogo82148/go-webntp: ntp service via WebSocket (2019-09-10 14:56:39 +09:00) https://github.com/shogo82148/go-webntp