data inside file referenced to UTC, not Pacific. File names reference Pacific time.

modules/icing/pireps.py

@@ -161,9 +161,6 @@ def pirep_icing(filename, lon_range=[-180, 180], lat_range=[-63, 63]):
 
 
 def pirep_icing_from_boeing(dirname='/ships19/cloud/scratch/ICING/BOEING/icing/2020/', lon_range=[-180, 180], lat_range=[-63, 63]):
-    # This data is relative to US Pacific time
-    pac_tz = tz.gettz('America/Los_Angeles')
-
     flist = []
     for path in Path(dirname).rglob('*.nc'):
         flist.append(path)
@@ -202,7 +199,7 @@ def pirep_icing_from_boeing(dirname='/ships19/cloud/scratch/ICING/BOEING/icing/2
                     continue
 
                 dto = datetime.datetime(year=years[k], month=mons[k], day=days[k], hour=hours[k], minute=mins[k], second=secs[k])
-                dto = dto.replace(tzinfo=pac_tz)
+                dto = dto.replace(tzinfo=timezone.utc)
                 ts = dto.timestamp()
 
                 if ice_bool[k] == 1: