Commit 93002eb3 authored by nmartensen's avatar nmartensen
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update datetime documentation on ISO 8601 durations

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branch : 3.0
parent de0d343037af
Pipeline #18808 passed with stage
in 2 minutes and 22 seconds
......@@ -34,9 +34,10 @@ The benefit of using this format is that the meaning of the stored
information is not subject to interpretation, as it is with the single
number format [#f1]_.
The ISO 8601 format has no concept of timedeltas (time interval
durations). `openpyxl` therefore always uses the single number format
for timedelta values when writing them to file.
The Office Open XML standard does not specify a supported subset of the
ISO 8601 duration format for representing time interval durations.
`openpyxl` therefore always uses the single number format for timedelta
values when writing them to file.
The 1900 and 1904 date systems
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