[Info-vax] EU will abandon daylight savings time in 2021

[Arne Vajhøj]

On 4/4/2019 6:08 AM, Jan-Erik Söderholm wrote:
> Den 2019-04-04 kl. 03:27, skrev Arne Vajhøj:
>> On 4/3/2019 1:37 PM, Jan-Erik Söderholm wrote:
>>>                        We have some local timestamps that has to be
>>> converted to GMT/UTC before sent to another system, and these are both
>>> from "winter time" and "summer time". We can of course hardcode the
>>> dates for the switches and compare, but it would be nice if the rule
>>> could be used...
>>
>> What do you have and what do you need to convert it to?
> 
> An INTEGER "date" with format YYYYMMDD, ag 20190404 for today.
> 
> A SMALLINT "time" with format HMM or HHMM, range from 1 (one minute
> after midnight) to 2359 (one minute before midnight). I guess
> it could be zero also for the first minute after midnight, but
> the system is having it's night-batch windows then.
> 
> These two are in Swedish local time (winter or summer time).
> 
> The target system uses Unix Epoch format (seconds since some date).

I am not a Python expert, but it looks like:

from datetime import date
import time

v = 20190404
d = date(v / 10000, (v / 100)  % 100, v % 100)
t = time.mktime(d.timetuple())

works for the first conversion.

Arne