1. Open Time log in any of the three ways mentioned here (from the Time log field in Standard fields; from the Time log field in Task settings or from Task time tracker).
2. Start a timer.
3. Stop it once you are done.
4. Click on Save.
After saving your Time log, you will also be redirected to the History tab 1.
Here, you can:
2 see all the time logs from everyone who is working on that particular task are recorded here.
3 read comments
4 edit time logs
5 delete records if needed.