Dates in ECMA Script

There are several methods available to obtain a date in various formats, as well as to perform time zone conversions. Particularly useful are the functions that output the date and time in Coordinated Universal Time (UTC), the global standard time defined by the World Time Standard. (This time is historically known as Greenwich Mean Time, as UTC lies along the meridian that includes London—and nearby Greenwich—in the United Kingdom.) The user's device provides the local time.