PCAN: Fix timestamp timezone offset (hardbyte#778)

bessman · web-flow · commit 136d6b7caeb7 · 2020-06-01T15:53:12.000+02:00
* PCAN: Fix timestamp timezone offset
* PCAN: Add comment on timezone offset
diff --git a/can/interfaces/pcan/pcan.py b/can/interfaces/pcan/pcan.py
@@ -16,8 +16,9 @@
     import uptime
     import datetime
 
+    # boottime() and fromtimestamp() are timezone offset, so the difference is not.
     boottimeEpoch = (
-        uptime.boottime() - datetime.datetime.utcfromtimestamp(0)
+        uptime.boottime() - datetime.datetime.fromtimestamp(0)
     ).total_seconds()
 except ImportError:
     boottimeEpoch = 0
