JavaScript Dates
6 lessonsAbout 36 minutesAdvanced
This part of the JavaScript Tutorial runs from JavaScript Dates through to JavaScript Date Pitfalls. There are 6 lessons here, and working through them takes about 36 minutes at a steady pace.
It follows on from JavaScript Map & Set, so finish that first if you have not already — the examples below assume you are comfortable with it.
Each lesson below says what it covers before you open it. Read them in order the first time; afterwards this page works as a index you can jump back into when you need to check one thing.
- 1JavaScript DatesThe Date object represents a single moment in time.
- 2JavaScript Date FormattingtoLocaleDateString formats a date the way a reader in a given place expects.
- 3JavaScript Date ArithmeticDates can be compared and subtracted because they are numbers underneath.
- 4JavaScript Date ComponentsGetters read each part of a date, and setters change them.
- 5JavaScript TimestampsA timestamp is the number of milliseconds since the start of 1970.
- 6JavaScript Date PitfallsA few date behaviours catch out almost every JavaScript developer.