Moment.js - tomorrow, today and yesterday

You can also do this to get the date for today and tomorrow and yesterday

let today     = moment();

let tomorrow  = moment().add(1,'days');

let yesterday = moment().add(-1, 'days');

I use a combination of add() and endOf() with moment

//...
const today = moment().endOf('day')
const tomorrow = moment().add(1, 'day').endOf('day')

if (date < today) return 'today'
if (date < tomorrow) return 'tomorrow'
return 'later'
//...

[EDIT 2022-01-04] I suggest you to use now dayjs which has the very same API as moment and is lightweight ;)

You can customize the way that both the .fromNow and the .calendar methods display dates using moment.updateLocale. The following code will change the way that .calendar displays as per the question:

moment.updateLocale('en', {
    calendar : {
        lastDay : '[Yesterday]',
        sameDay : '[Today]',
        nextDay : '[Tomorrow]',
        lastWeek : '[Last] dddd',
        nextWeek : '[Next] dddd',
        sameElse : 'L'
    }
});

Based on the question, it seems like the .calendar method would be more appropriate -- .fromNow wants to have a past/present prefix/suffix, but if you'd like to find out more you can read the documentation at http://momentjs.com/docs/#/customization/relative-time/.

To use this in only one place instead of overwriting the locales, pass a string of your choice as the first argument when you define the moment.updateLocale and then invoke the calendar method using that locale (eg. moment.updateLocale('yesterday-today').calendar( /* moment() or whatever */ ))

EDIT: Moment ^2.12.0 now has the updateLocale method. updateLocale and locale appear to be functionally the same, and locale isn't yet deprecated, but updated the answer to use the newer method.

Moment.js - tomorrow, today and yesterday

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