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Learn JavaScript Temporal in the Right Order.
Temporal is the new standard for date and time in JavaScript. New Temporal objects were designed to replace the old Date object. Unlike legacy Date, Temporal objects are immutable and provide first-class support for time zones, daylight saving time, date arithmetic and non-Gregorian calendars. Learn More ...
Date.
Formula
Date months are 0 - based, Temporal months are 1 - based
Date arithmetic is manual, Temporal is built - inDate mutates values, Temporal does not Date mixes UTC and time zones, Temporal separates them Date math can fail in DST handling, Temporal can not Learn why Temporal is the modern alternative to Date. Learn More ... Temporal.Duration
Temporal.Duration object represents a length of time.
7 days and 1 hour.
Temporal.Duration object includes these properties
years, months, weeks, days, hours, minutes, seconds, milliseconds, and nanoseconds. The Duration object is used to perform precise date and time arithmetic (e.g. add and subtract) without the bugs and complexity associated with the old JavaScript Date object.