What is the Difference Between Epoch Time and Date Time?
Epoch time is a measure of time relative to the Unix Epoch, while date time is an absolute measure of time with no reference to any specific starting point. The difference between the two is that while epoch time is measured in milliseconds since the Unix Epoch, date time is measured in years, months, days, hours, or minutes according to the Gregorian calendar or the Julian calendar. For example, an epoch timestamp might look something like 1532044449775, while a date time would look something like August 17th, 2018 6:00 PM.
Epoch time is useful for computer systems that need to track time in a consistent manner, while date time is more useful for humans who need to track time in a more intuitive way. Additionally, epoch time is not affected by daylight savings time, while date time is. This means that epoch time is a more reliable measure of time for computer systems, while date time is more useful for humans.
It is important to note that the Date.parse() function will return a timestamp in milliseconds, so you may need to convert it to seconds or minutes depending on your needs. Additionally, you should be aware of the different time zones and their offsets when working with different locales. For example, the time zone offset for the United States is -5 hours from UTC, while the time zone offset for the United Kingdom is 0 hours from UTC.
It’s important to note that the ISO 8601 string format is the most widely accepted format for timestamps, and is the most compatible with different programming languages. Additionally, it’s important to consider the timezone when working with timestamps, as this can affect the accuracy of the timestamp.