Possibilities:

Information about the current date and time.

Information about the current day.

Information about the number of days until the end of the year.

The current time in Unix format.

Add to date and time years, months, days, quarters,
weeks, hours, minutes, seconds.

Subtraction from date and time of years, months, days, quarters,
weeks, hours, minutes, seconds.

Getting the result in Unix format.

Calculate the difference between two dates in days or hours.

Ability to copy the result of operations to the clipboard.

Supports dark and light app theme (depends on the system settings of the device and the version of android os).

Paid version without ads and banners.