Pinboard (jm)
https://pinboard.in/u:jm/public/
recent bookmarks from jmsystemd on Proxmox freaks out at Irish DST2023-03-26T18:59:25+00:00
https://forum.proxmox.com/threads/systemd-100-cpu-hang.124767/
jmvia:kiall proxmox dst daylight-savings timezones ireland systemdhttps://pinboard.in/https://pinboard.in/u:jm/b:f82ab75435cc/Why you should develop a correction of error (COE) | AWS Cloud Operations & Migrations Blog2022-03-02T14:33:45+00:00
https://aws.amazon.com/blogs/mt/why-you-should-develop-a-correction-of-error-coe/
jmWhen documenting times, be sure to include a time zone, and make sure that you’re using it correctly (e.g., PDT vs. PST). Better yet, either use UTC or omit the middle letter of the time zone (e.g., “PT”).
As Brian Scanlan sez: "A good 1/4 of the neurons in my brain were wired to quickly add and subtract 8 hours from timestamps by the time I left there"
Just. Use. UTC.]]>amazon aws timezones coe process postmortems dates pdt pst utchttps://pinboard.in/https://pinboard.in/u:jm/b:66f5a94c1203/Communications data errors: UK police incriminating the wrong people due to data retention system screwups2017-03-12T23:11:50+00:00
http://www.cyberleagle.com/2014/07/the-other-side-of-communications-data.html
jm- Omission of an underscore when transcribing an e-mail address led to the wrong subscriber information being provided and a search warrant being executed at the premises of an individual unconnected with the investigation.
- A CSP's data warehouse system change affected how GMT and British Summer Time were treated. This was not communicated to staff using the data retention disclosure system. This led to a one hour error in subscriber information disclosed in relation to IP address usage. Of 98 potential disclosure errors identified, 94 were in fact incorrect and four returned the same results when re-run. Of the 94 incorrect disclosures, in three cases a search warrant was executed at premises relating to individuals unconnected with the investigation (and one individual was arrested).
- Due to a technical fault causing a time zone conversion to be out by seven hours, a CSP voluntarily disclosed an incorrect IP address to a public authority. That led to a search warrant being executed at premises relating to individuals unconnected with the investigation.
In other words, timezones largely screw up everything, yet again.]]>timezones uk law data-retention errors bsthttps://pinboard.in/https://pinboard.in/u:jm/b:2b6fd76aa954/Valid MFA token does not work during first 1am hour before daylight savings ends and second 1am hour starts · Issue #1611 · aws/aws-cli2015-11-01T12:20:33+00:00
https://github.com/aws/aws-cli/issues/1611
jmutc timezones fail bugs aws aws-cli dst daylight-savings timehttps://pinboard.in/https://pinboard.in/u:jm/b:16636c8b74a6/Falsehoods programmers believe about time2014-10-17T13:48:27+00:00
http://infiniteundo.com/post/25326999628/falsehoods-programmers-believe-about-time
jmI have repeatedly been confounded to discover just how many mistakes in both test and application code stem from misunderstandings or misconceptions about time. By this I mean both the interesting way in which computers handle time, and the fundamental gotchas inherent in how we humans have constructed our calendar — daylight savings being just the tip of the iceberg.
In fact I have seen so many of these misconceptions crop up in other people’s (and my own) programs that I thought it would be worthwhile to collect a list of the more common problems here.
See also the follow-up: http://infiniteundo.com/post/25509354022/more-falsehoods-programmers-believe-about-time-wisdom
(via Marc)]]>via:marcomorain time dates timezones coding gotchas calendar bugshttps://pinboard.in/https://pinboard.in/u:jm/b:61c193f5183c/Arrow2014-05-01T15:59:32+00:00
http://crsmithdev.com/arrow/
jmpython libraries time dates timestamps timezones apis proliferation iso-8601https://pinboard.in/https://pinboard.in/u:jm/b:f02320ef10fd/xkcd: Now2014-02-27T00:08:46+00:00
http://xkcd.com/1335/
jmtimezones time world clock xkcd images midnight referencehttps://pinboard.in/https://pinboard.in/u:jm/b:3c7886098a33/EFF Wins Protection for Time Zone Database2012-02-23T13:26:41+00:00
https://www.eff.org/press/releases/eff-wins-protection-time-zone-database
jmcopyright eff timezones via:fanf time unix olsonhttps://pinboard.in/https://pinboard.in/u:jm/b:d304184ae687/Worldtime Buddy2011-05-18T22:05:09+00:00
http://www.worldtimebuddy.com/
jmtimezones time conversion javascript worldhttps://pinboard.in/https://pinboard.in/u:jm/b:6629ad5c0f09/Web service - current time zone for a city? - Stack Overflow2010-10-07T10:39:11+00:00
http://stackoverflow.com/questions/55901/web-service-current-time-zone-for-a-city
jmdst daylight-savings local timezones iso8601 dates times web-services httphttps://pinboard.in/u:jm/b:650cffebba69/Every Time Zone2010-04-14T10:22:45+00:00
http://everytimezone.com/
jmconversion javascript reference timezones time internationalhttps://pinboard.in/u:jm/b:add0df0bd7c4/