Use isSameorAfter to set condition to select specific periods

momentjs is a JavaScript library that helps parse, validate, manipulate, and display date/time in JavaScript in a very easy way.

momentjs provide specific instructions to handle dates which can create conditions in each one, to select a period after and same that you needed, like a >= instruction use isSameorAfter:

moment('2010-10-20').isSameOrAfter('2010-10-19'); // true
moment('2010-10-20').isSameOrAfter('2010-10-20'); // true
moment('2010-10-20').isSameOrAfter('2010-10-21'); // false