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Another thing to notice: they use the highly nonstandard time zone abbreviation “PDT”. This works because they’re a US-only airline but if an international airline did this, they’d be in for a world of hurt.



PDT is extremely standard?

http://www.timezoneconverter.com/cgi-bin/zoneinfo.tzc?s=defa...

Granted, I think everything should always be a UTC offset, but I'm also weird.


Is it really "highly nonstandard"? I thought it referred to Pacific Time during daylight savings. The rest of the time being PST (Pacific Standard Time).



> Specifically, time in this zone is referred to as Pacific Standard Time (PST) when standard time is being observed (early November to mid-March), and Pacific Daylight Time (PDT) when daylight saving time (mid-March to early November) is being observed.

https://en.m.wikipedia.org/wiki/Pacific_Time_Zone#:~:text=Sp....

What do you think is the correct format?


To anyone claiming they're standard:

> Time zones are often represented by alphabetic abbreviations such as "EST", "WST", and "CST", but these are not part of the international time and date standard ISO 8601 and their use as sole designator for a time zone is discouraged.

> Such designations predate both ISO 8601 and the internet era; in an earlier era, they were sufficiently unambiguous for many practical uses within a national context (for example, in railway timetables and business correspondence), but their ambiguity explains their deprecation in the internet era, when communications more often cannot rely on implicit geographic context to supply part of the meaning.

https://en.wikipedia.org/wiki/List_of_time_zone_abbreviation...

Turns out PST and PDT are safe (no one else seems to use them) but something like CST is not: it could mean Central Standard Time (America/Chicago during standard time) or several other choices like China Standard Time (Asia/Shanghai).

Ambiguity is bad.


> This works because they’re a US-only airline

They're not US-only (note that the response included a value for whether it was a non-US-including flight), but they are North/Central America/Caribbean-only.


Southwest has international routes now to popular vacation destinations south of the US.




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