add dt_utc helper

freqtrade/util/__init__.py

@@ -1,13 +1,14 @@
-from freqtrade.util.datetime_helpers import dt_floor_day, dt_from_ts, dt_now, dt_ts
+from freqtrade.util.datetime_helpers import dt_floor_day, dt_from_ts, dt_now, dt_ts, dt_utc
 from freqtrade.util.ft_precise import FtPrecise
 from freqtrade.util.periodic_cache import PeriodicCache
 
 
 __all__ = [
+    'dt_floor_day',
     'dt_from_ts',
     'dt_now',
     'dt_ts',
-    'dt_floor_day',
+    'dt_utc',
     'FtPrecise',
     'PeriodicCache',
 ]

freqtrade/util/datetime_helpers.py

@@ -7,6 +7,12 @@ def dt_now() -> datetime:
     return datetime.now(timezone.utc)
 
 
+def dt_utc(year: int, month: int, day: int, hour: int = 0, minute: int = 0, second: int = 0,
+           microsecond: int = 0) -> datetime:
+    """Return a datetime in UTC."""
+    return datetime(year, month, day, hour, minute, second, microsecond, tzinfo=timezone.utc)
+
+
 def dt_ts(dt: Optional[datetime] = None) -> int:
     """
     Return dt in ms as a timestamp in UTC.

tests/utils/test_datetime_helpers.py

@@ -3,7 +3,7 @@ from datetime import datetime, timedelta, timezone
 import pytest
 import time_machine
 
-from freqtrade.util import dt_floor_day, dt_from_ts, dt_now, dt_ts
+from freqtrade.util import dt_floor_day, dt_from_ts, dt_now, dt_ts, dt_utc
 
 
 def test_dt_now():
@@ -21,6 +21,13 @@ def test_dt_now():
         assert dt_ts(now) == int(now.timestamp() * 1000)
 
 
+def test_dt_utc():
+    assert dt_utc(2023, 5, 5) == datetime(2023, 5, 5, tzinfo=timezone.utc)
+    assert dt_utc(2023, 5, 5, 0, 0, 0, 555500) == datetime(2023, 5, 5, 0, 0, 0, 555500,
+                                                           tzinfo=timezone.utc)
+
+
+
 @pytest.mark.parametrize('as_ms', [True, False])
 def test_dt_from_ts(as_ms):
     multi = 1000 if as_ms else 1