Depends on what you mean by interfering, but this will parse the date into GMT
| makeresults
| eval _time=strptime("Mon Sep 28 00:00:00 GMT 2020", "%a %b %d %T %Z %Y")
and this will parse the date to your local time
| makeresults
| eval _time=strptime("Mon Sep 28 00:00:00 GMT 2020", "%a %b %d %T GMT %Y")
Hope this what you're after
Depends on what you mean by interfering, but this will parse the date into GMT
| makeresults
| eval _time=strptime("Mon Sep 28 00:00:00 GMT 2020", "%a %b %d %T %Z %Y")
and this will parse the date to your local time
| makeresults
| eval _time=strptime("Mon Sep 28 00:00:00 GMT 2020", "%a %b %d %T GMT %Y")
Hope this what you're after
Hi
here is described those parameters. https://docs.splunk.com/Documentation/Splunk/8.0.5/SearchReference/Commontimeformatvariables
Based on your example you should try this
eval pTime = strptime (timeField, “%a %b %d %H:%M:%S %Z %Y”)
You must take care of GMT also as it tells time zone, even it’s meaning UTC.
r. Ismo