[1] 497日 ‐ 通信用語の基礎知識 (2019-02-18 16:17:50 +09:00) https://www.wdic.org/w/TECH/497%E6%97%A5

[5] All the TCP/IP ports that are in a TIME_WAIT status are not closed after 497 days from system startup in Windows Vista, in Windows 7, in Windows Server 2008 and in Windows Server 2008 R2 - Microsoft Support, 2023-11-25T12:17:35.000Z https://support.microsoft.com/en-us/topic/all-the-tcp-ip-ports-that-are-in-a-time-wait-status-are-not-closed-after-497-days-from-system-startup-in-windows-vista-in-windows-7-in-windows-server-2008-and-in-windows-server-2008-r2-38c81adc-d990-c6f7-3689-91cca5d19a20

[8] To keep a Boeing Dreamliner flying, reboot once every 248 days (2023-11-25T12:20:09.000Z) https://www.engadget.com/2015-05-01-boeing-787-dreamliner-software-bug.html?_fsig=BoE1kOFEwuYg7Ip1pGil_w--%7EA

[2] 49.7日 ‐ 通信用語の基礎知識 (2019-02-18 16:15:32 +09:00) https://www.wdic.org/w/TECH/49.7%E6%97%A5

[6] Computer Hangs After 49.7 Days, 2023-11-25T12:18:00.000Z, 1999-05-08T05:10:03.878Z https://web.archive.org/web/19990508050925/http://support.microsoft.com/support/kb/articles/q216/6/41.asp

[10] The 49.7-Day Time Bomb Hidden in Every Mac's Network Stack, ds8lkstwq, 2026-04-09T04:05:25.000Z, 2026-04-10T07:10:31.884Z https://pbxscience.com/the-49-7-day-time-bomb-hidden-in-every-macs-network-stack/

[11] すべてのMacに49.7日バグ—長期稼働でTCP接続不能になる脆弱性が発覚 - TechFeed, 2026-04-10T07:10:52.000Z https://techfeed.io/entries/69d8131c3a9f4a0e4f11b0aa

[3] 24.9日 ‐ 通信用語の基礎知識 (2019-02-18 16:19:18 +09:00) https://www.wdic.org/w/TECH/24.9%E6%97%A5

[4] 248日 ‐ 通信用語の基礎知識 (2019-02-18 16:19:51 +09:00) https://www.wdic.org/w/TECH/248%E6%97%A5

[7] Time formatting and storage bugs - Wikipedia, 2023-11-24T03:13:21.000Z, 2023-11-25T12:18:44.999Z https://en.wikipedia.org/wiki/Time_formatting_and_storage_bugs#Relative_time_overflow

497日、49.7日、248日、51日、49.71日

[9] Boeing 787s must be turned off and on every 51 days to prevent 'misleading data' being shown to pilots • The Register, 2023-11-25T12:20:27.000Z https://www.theregister.com/2020/04/02/boeing_787_power_cycle_51_days_stale_data/