types: return UTC time from Datetime.Time()

Addresses IDX-479

Signed-off-by: philhassey <[email protected]>

types/datetime.go

@@ -274,9 +274,9 @@ func (a Datetime) Milliseconds() int64 {
 	return a.value
 }
 
-// Time returns the time.Time representation of a Datetime.
+// Time returns the UTC time.Time representation of a Datetime.
 func (a Datetime) Time() time.Time {
-	return time.UnixMilli(a.value)
+	return time.UnixMilli(a.value).UTC()
 }
 
 func (v Datetime) hash() uint64 {

types/datetime_test.go

@@ -123,7 +123,7 @@ func TestDatetime(t *testing.T) {
 		t.Parallel()
 		in := types.NewDatetime(time.UnixMilli(42))
 		got := in.Time()
-		want := time.UnixMilli(42)
+		want := time.UnixMilli(42).UTC()
 		testutil.Equals(t, got, want)
 	})