Mutates the original moment by setting it to the end of a unit of time.

This is the same as moment#startOf, only instead of setting to the start of a unit of time, it sets to the end of a unit of time.

moment().endOf("year"); // set the moment to 12-31 23:59:59.999 this year

As of version 2.0.0, moment#endOf('day') replaced moment#eod.

Note: moment#endOf('week') was added in version 2.0.0.

As of version 2.1.0, moment#endOf('week') uses the locale aware week start day.