Inactive (doesn’t show up on the Agenda) SPC m d T
If you simply do the above and just type in a time, e.g. 3pm it will render the below
Or type it out manually, format: [2021-03-23 Tue 15:30]
Active (does show up on the Agenda) SPC m d t
If you simply do the above and just type in a time, e.g. 3pm it will render the below
Or type it out manually, format: <2021-03-23 Tue 15:30>
Or use custom command SPC m i d which will put an inactive timestamp (with time) on the line below your cursor and enter insert mode to insert a prefix string before the stamp, e.g. Started: [timestamp]