From eae86f3b3b2ce2b66115759d9eac8a6ec080903f Mon Sep 17 00:00:00 2001
From: Mukller <antonpetnitsky@users.noreply.github.com>
Date: Mon, 24 Aug 2026 20:56:54 +0300
Subject: [PATCH 1/3] fix(time): precisedelta keeps the sign of negative
 timedeltas (Closes #379)

---
 src/humanize/time.py | 17 +++++++++++++++--
 tests/test_time.py   | 26 ++++++++++++++++++++++++++
 2 files changed, 41 insertions(+), 2 deletions(-)

diff --git a/src/humanize/time.py b/src/humanize/time.py
index 4a07d528..7a0307af 100644
--- a/src/humanize/time.py
+++ b/src/humanize/time.py
@@ -536,10 +536,23 @@ def precisedelta(
 
     ```
     """
+    # Sign captured from the ORIGINAL value: _date_and_delta returns
+    # _abs_timedelta(delta), which would silently drop it (#379).
+    import datetime as dt
+
+    if isinstance(value, dt.timedelta):
+        negative = value < dt.timedelta(0)
+    else:
+        try:
+            negative = value < 0
+        except TypeError:
+            negative = False
     date, delta = _date_and_delta(value, precise=True)
     if date is None:
         return str(value)
+    import datetime as dt
 
+    sign = "-" if delta < dt.timedelta(0) else ""
     suppress_set = {Unit[s.upper()] for s in suppress}
 
     # Find a suitable minimum unit (it can be greater than the one that the
@@ -663,12 +676,12 @@ def precisedelta(
             break
 
     if len(texts) == 1:
-        return texts[0]
+        return ("-" if negative else "") + texts[0]
 
     head = ", ".join(texts[:-1])
     tail = texts[-1]
 
-    return _("%s and %s") % (head, tail)
+    return ("-" if negative else "") + _("%s and %s") % (head, tail)
 
 
 def _rounding_by_fmt(format: str, value: float) -> float | int:
diff --git a/tests/test_time.py b/tests/test_time.py
index 76997704..8d378a3d 100644
--- a/tests/test_time.py
+++ b/tests/test_time.py
@@ -852,3 +852,29 @@ def test_time_unit() -> None:
 )
 def test_rounding_by_fmt(fmt: str, value: float, expected: float) -> None:
     assert time._rounding_by_fmt(fmt, value) == pytest.approx(expected)
+
+
+def test_precisedelta_negative_multi_unit():
+    """issue #379: precisedelta silently dropped the sign of negative timedeltas."""
+    assert (
+        humanize.precisedelta(dt.timedelta(seconds=-3661))
+        == "-1 hour, 1 minute and 1 second"
+    )
+
+
+def test_precisedelta_negative_single_unit():
+    assert (
+        humanize.precisedelta(dt.timedelta(seconds=-3661), minimum_unit="minutes")
+        == "-1 hour and 1.02 minutes"
+    )
+
+
+def test_precisedelta_zero_stays_unsigned():
+    assert humanize.precisedelta(dt.timedelta(0), minimum_unit="minutes") == "0 minutes"
+
+
+def test_precisedelta_positive_unchanged():
+    assert (
+        humanize.precisedelta(dt.timedelta(seconds=3661))
+        == "1 hour, 1 minute and 1 second"
+    )
\ No newline at end of file

From 8cfff7dc0611bb7e96191a5b7a4efe8eb8d5b60a Mon Sep 17 00:00:00 2001
From: "pre-commit-ci[bot]"
 <66853113+pre-commit-ci[bot]@users.noreply.github.com>
Date: Mon, 24 Aug 2026 17:59:26 +0000
Subject: [PATCH 2/3] [pre-commit.ci] auto fixes from pre-commit.com hooks

for more information, see https://pre-commit.ci
---
 tests/test_time.py | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/tests/test_time.py b/tests/test_time.py
index 8d378a3d..823b8d3b 100644
--- a/tests/test_time.py
+++ b/tests/test_time.py
@@ -877,4 +877,4 @@ def test_precisedelta_positive_unchanged():
     assert (
         humanize.precisedelta(dt.timedelta(seconds=3661))
         == "1 hour, 1 minute and 1 second"
-    )
\ No newline at end of file
+    )

From 17ab3b7f03d0a037bf7e0c3b5016fb24f08b03f0 Mon Sep 17 00:00:00 2001
From: Mukller <antonpetnitsky@users.noreply.github.com>
Date: Tue, 25 Aug 2026 13:37:03 +0300
Subject: [PATCH 3/3] fix(time): precisedelta keeps the sign of negative
 timedeltas (Closes #379)

---
 src/humanize/time.py | 1 -
 1 file changed, 1 deletion(-)

diff --git a/src/humanize/time.py b/src/humanize/time.py
index 7a0307af..fbd4da3d 100644
--- a/src/humanize/time.py
+++ b/src/humanize/time.py
@@ -552,7 +552,6 @@ def precisedelta(
         return str(value)
     import datetime as dt
 
-    sign = "-" if delta < dt.timedelta(0) else ""
     suppress_set = {Unit[s.upper()] for s in suppress}
 
     # Find a suitable minimum unit (it can be greater than the one that the