Timer provides the time at which the Timer callback timeout and related information.
A simplified sequence diagram focusing only on the relevant events is shown below.
to_dataframe API returns a table which has the following columns.
|timer_event_timestamp||System time||Timer timeout.|
|callback_start_timestamp||System time||Callback start time|
|callback_end_timestamp||System time||Callback end time|
Here, the timer firing time is calculated by the following,