Fix RPG timestamp bug

Author: tukiains

cloudnetpy/instruments/rpg.py

@@ -328,10 +328,14 @@ def linear_to_db(self, variables_to_log):
             self.data[name].lin2db()
 
     def _get_date(self):
-        epoch = datetime.datetime(2001, 1, 1).timestamp()
         time_median = float(ma.median(self.raw_data['time']))
-        time_median += epoch
-        return datetime.datetime.utcfromtimestamp(time_median).strftime('%Y %m %d').split()
+        return _get_rpg_time(time_median)
+
+
+def _get_rpg_time(timestamp: float) -> list:
+    epoch = datetime.datetime(2001, 1, 1).timestamp()
+    timestamp += epoch
+    return datetime.datetime.fromtimestamp(timestamp).strftime('%Y %m %d').split()
 
 
 def _save_rpg(rpg, output_file, keep_uuid):

cloudnetpy/version.py

@@ -1,4 +1,4 @@
 MAJOR = 1
 MINOR = 3
-PATCH = 1
+PATCH = 2
 __version__ = '%d.%d.%d' % (MAJOR, MINOR, PATCH)

tests/unit/test_rpg.py

@@ -32,3 +32,10 @@ def test_2(self):
         with pytest.raises(AssertionError):
             assert_array_equal(rpg._reduce_header(self.header),
                                {'a': 1, 'b': 2, 'c': 3})
+
+
+def test_get_rpg_time():
+    secs_in_day = 24 * 60 * 60
+    assert rpg._get_rpg_time(0) == ['2001', '01', '01']
+    assert rpg._get_rpg_time(secs_in_day - 1) == ['2001', '01', '01']
+    assert rpg._get_rpg_time(secs_in_day) == ['2001', '01', '02']