ChronoLocalDateTime until() method in Java with Examples
until() method of the ChronoLocalDateTime interface used to calculate the amount of time between two ChronoLocalDateTime objects using TemporalUnit. The start and end points are this and the specified ChronoLocalDateTime passed as a parameter. The result will be negative if the end is before the start. The calculation returns a whole number, representing the number of complete units between the two ChronoLocalDateTime. This instance is immutable and unaffected by this method call.
public long until(Temporal endExclusive, TemporalUnit unit)
Parameters: This method accepts two parameters:
- endExclusive which is the end date, exclusive, which is converted to a ChronoLocalDateTime and
- unit which is the unit to measure the amount.
Return value: This method returns the amount of time between this ChronoLocalDateTime and the end ChronoLocalDateTime.
Exception:This method throws following Exceptions:
- DateTimeException – if the amount cannot be calculated, or the ending temporal cannot be converted to a ChronoLocalDateTime.
- UnsupportedTemporalTypeException – if the unit is not supported.
- ArithmeticException – if numeric overflow occurs.
Below programs illustrate the until() method:
Result in HOURS: -10364
Result in DAYS: 3292