Date to timestamp
Convert date to timestamp.
Convert date to timestamp.
Converting dates to Unix timestamp is a fundamental operation in programming, used for storing dates in databases, event logging, and time synchronization between systems. Modern web applications often need to transfer dates between server and browser, and Unix timestamp is the ideal intermediate format, independent of time zones.
Timestamp is essential for: sorting events from newest (greater value = later time), calculating time difference between two events, caching data with expiration times, voting and poll systems, or in blockchain implementation where each block has a timestamp confirming its creation time.
Choose timestamp format depending on your needs: seconds (1704067200) are sufficient for most web applications and APIs, milliseconds (1704067200000) are the standard in JavaScript and JVM and for precise event tracking, nanoseconds (1704067200000000) are used in financial systems where every millisecond matters.
Always check time zone when converting - default settings may differ between environments. Windows and Unix may handle pre-epoch time differently (negative values). Operating on timestamps is easier than date strings because simple arithmetic operations can be performed without libraries.