More operations on date

[manoverda]

Is your feature request related to a problem? Please describe. No, it is not related to a problem, just a nice to have

Describe the solution you'd like I would like to be able to find duration between 2 dates:

• difference between dates: date1 - date2 = x years, y months, z days, a hours b minutes
• countdown (how many times till a date? so: date - now)

Describe alternatives you've considered I didn't find any alternative