From 395dcd70047b6d7649d179c27544f8ca1d8bba0d Mon Sep 17 00:00:00 2001 From: Brendan Jurd Date: Fri, 25 Feb 2022 10:56:13 +1100 Subject: [PATCH] DOCS: add note about conversion between date and datetime values Refs #1483. --- docs/source/operations/conversions/unitconvert.rst | 7 +++++++ 1 file changed, 7 insertions(+) diff --git a/docs/source/operations/conversions/unitconvert.rst b/docs/source/operations/conversions/unitconvert.rst index f1488d9a6a..810ca10159 100644 --- a/docs/source/operations/conversions/unitconvert.rst +++ b/docs/source/operations/conversions/unitconvert.rst @@ -158,6 +158,13 @@ Time units In the table below all time units supported by PROJ are listed. + .. note:: + + PROJ internally treats all date values as datetimes with a time value + of 00:00 (midnight). This can lead to surprising behaviours if you + convert between date units and datetime units. + + +--------------+-----------------------------+ | Label | Name | +==============+=============================+