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JavaScript Temporal

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Temporal Study Path

Learn Temporal Dates in the Right Order:

  • First the idea
  • Then how to make them
  • Then how to use them

1.What is JavaScript Temporal?

Temporal is the new standard for date and time in JavaScript.

New Temporal objects was designed to replace the old Date object.


2. Temporal vs Date

Compare JavaScript Temporal vs Date.

Learn the differences in mutation, time zones, DST handling, and date math.

Learn why Temporal is the modern alternative to Date.


3. Temporal.Now

Temporal is the modern way to work with dates and times in JavaScript.

Learn how to get the current date and time using JavaScript Temporal.Now.

See examples of Instant, PlainDate, and ZonedDateTime.


4. Temporal.Instant

A Temporal.Instant represents an exact moment in time.

It is similar to a timestamp and is always stored in UTC.

Learn how to use JavaScript Temporal.Instant to work with exact moments in time.

Compare Instants, convert from timestamps, and replace Date.now().


5. Temporal.PlainDate

A Temporal.PlainDate object represents a calendar date without a time.

A Temporal.PlainDate is typically in ISO 8601 format ("2026-05-01").

What You Will Learn:

  • How to use JavaScript Temporal.PlainDate
  • How to work with dates without time
  • How to add and subtract days
  • How to compare dates safely

6. Temporal.PlainDateTime

What You Will Learn:

  • How to use JavaScript Temporal.PlainDateTime
  • How to work with date and time without a time zone
  • How to add and subtract dates
  • How to compare dates safely

7. Temporal.ZonedDateTime

What You Will Learn:

  • How to use JavaScript Temporal.ZonedDateTime
  • How to handle time zones correctly
  • How to add and subtract date
  • How to avoid DST (Daylight Saving Time) bugs
  • How to convert between time zones safely

8. Temporal.Duration

What You Will Learn:

  • How to use JavaScript Temporal.Duration
  • How to to represent and calculate lengths of time
  • Add and subtract days, hours, months, and more safely

9. Temporal Arithmetic

The Temporal API provides methods for easy and reliable date and time arithmetic.

Learn how to add and subtract dates safely using JavaScript Temporal.

Perform date arithmetic without DST bugs or mutation problems.


Browser Support

Temporal is an ES2026 feature. It is not fully supported in all browsers:

Chrome
144		 Edge
144		 Firefox
139		 Safari
 Opera
Jan 2026 Jan 2026 May 2025 🚫 🚫


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