How to get the log results for last 1hr through the logging query?

Is there a way to get log results for last 1hr,2hr ..etc using the logging query itself? without using the Time Range selector in the GUI.


The filter can refer to the log entry timestamp field, for example

timestamp >= "2022-01-20T00:00:00Z"

but there's no way to refer to a relative time.

There is at least one example on https://cloud.google.com/logging/docs/view/query-library-preview#gae-filters