May 19, 2025 · May 19, 2025 · May 19, 2025 · May 19, 2025 · May 19, 2025 · May 19, 2025
diff --git a/Misc/ACKS b/Misc/ACKS
 Chris Hogan
 Tomas Hoger
 Jonathan Hogg
 John Keith Hohm
 Vladyslav Hoi
 Kamilla Holanda
 Steve Holden
diff --git a/Misc/NEWS.d/next/Library/2025-05-19-18-12-42.gh-issue-88994.7avvVu.rst b/Misc/NEWS.d/next/Library/2025-05-19-18-12-42.gh-issue-88994.7avvVu.rst
 Change :func:`datetime.datetime.now` to half-even rounding for
 consistency with :func:`datetime.datetime.fromtimestamp`.  Patch by
 John Keith Hohm.
diff --git a/Modules/_datetimemodule.c b/Modules/_datetimemodule.c
    time_t secs;
    int us;

    if (_PyTime_AsTimevalTime_t(ts, &secs, &us,_PyTime_ROUND_FLOOR) < 0)
    if (_PyTime_AsTimevalTime_t(ts, &secs, &us,_PyTime_ROUND_HALF_EVEN) < 0) {
        return NULL;
    }
    assert(0 <= us && us <= 999999);

    return datetime_from_timet_and_us(cls, f, secs, us, tzinfo);
Original file line number	Diff line number	Diff line change
		@@ -0,0 +1,3 @@
		Change :func:`datetime.datetime.now` to half-even rounding for
		consistency with :func:`datetime.datetime.fromtimestamp`. Patch by
		John Keith Hohm.
Original file line number	Diff line number	Diff line change
Expand Up		@@ -5539,8 +5539,9 @@ datetime_best_possible(PyObject cls, TM_FUNC f, PyObject tzinfo)
		time_t secs;
		int us;

		if (_PyTime_AsTimevalTime_t(ts, &secs, &us,_PyTime_ROUND_FLOOR) < 0)
		if (_PyTime_AsTimevalTime_t(ts, &secs, &us,_PyTime_ROUND_HALF_EVEN) < 0) {
		return NULL;
		}
		assert(0 <= us && us <= 999999);

		return datetime_from_timet_and_us(cls, f, secs, us, tzinfo);
Expand Down