fix(utime.c): set_time should operate in local tz

Needed due to changes from c7f59d3e.

cc !146

Documentation/pycardium/utime.rst

@@ -25,11 +25,13 @@ alarm.
 
 .. py:function:: time()
 
-   Return the current timestamp in seconds since 2000-01-01 00:00.
+   Return the current timestamp in seconds since 2000-01-01 00:00 in
+   the local timezone.
 
 .. py:function:: set_time(secs)
 
-   Sets the time to ``secs`` seconds since 2000-01-01 00:00.
+   Sets the time to ``secs`` seconds since 2000-01-01 00:00 in the local
+   timezone.
    
 .. py:function:: set_unix_time(secs)
 

pycardium/modules/utime.c

@@ -20,7 +20,7 @@
 static mp_obj_t time_set_time(mp_obj_t secs)
 {
 	uint64_t timestamp =
-		mp_obj_get_int(secs) * 1000ULL + EPOCH_OFFSET * 1000ULL;
+		mp_obj_get_int(secs) * 1000ULL + EPOCH_OFFSET * 1000ULL + TZONE_OFFSET;
 	epic_rtc_set_milliseconds(timestamp);
 	return mp_const_none;
 }