The change time tool is an integral part of the worksheet and can be "attached" to any worksheet. This means that you can choose which worksheets have a Change time tool, and which don't. But in case you just need it and it's not there, just press F9 to get it.

In manual mode, the time in changed one step at a time by clicking on the buttons at the right.

In Realtime mode, the time is changed automatically according to the computer clock

In Animate mode, the time is changed automatically at the rate/interval you select from the buttons on the right.

The change time tool can be used for the Birthchart, transits or Muhurta.

Increase or decrease time by intervals of 1 second up to 10 years with the click of the mouse.

The currently used date

Add the currently used date to the "picklist", for later use.

Select any date from the picklist to restore that date. This is a valuable feature for birth time rectification purposes.