On Mon, Feb 27, 2023 at 8:26 PM PALAYRET Jacques
wrote:
> # PostgreSQL does not take into account the additional second (leap second)
> in some calendar days ; eg. 2016, 31 dec. :
> SELECT to_timestamp('20170102 10:11:12','mmdd hh24:mi:ss') -
> to_timestamp('20161230 00:00:00','mmdd
Laurenz Albe, you are right, thank you; actually, it depends (of course) on the
time zone:
# With GMT (no Daylight Saving Time):
SHOW timezone ;
TimeZone
--
GMT
SELECT timestamp with time zone '2022-03-29 12:00:00' - timestamp with time
zone '2022-03-26 12:00:00' ;
?column?
Does PostgreSQL take into account daylight saving time in its calendar?
For the last summer hour of the spring (Daylight Saving Time), on Sunday March
27, 2022:
SELECT to_timestamp('20220329 00:00:00','mmdd hh24:mi:ss') -
to_timestamp('20220320 00:00:00','mmdd hh24:mi:ss') intervalle
On Mon, 2023-02-27 at 07:26 +, PALAYRET Jacques wrote:
> # An interval in " years months ... seconds " given in seconds by
> EXTRACT(EPOCH ...) transtyped into INTERVAL :
> SELECT (EXTRACT(EPOCH FROM ('3 years 2 months 1 day 10 hours 11 minutes 12
> seconds'::interval) ) || '
Hello,
# An interval in " years months ... seconds " given in seconds by EXTRACT(EPOCH
...) transtyped into INTERVAL :
SELECT (EXTRACT(EPOCH FROM ('3 years 2 months 1 day 10 hours 11 minutes 12
seconds'::interval) ) || ' seconds')::interval ;
interval
-
27772:11:12
# The same
