toLong

Returns the value of this duration expressed as a Long number of the specified unit.

If the result doesn't fit in the range of Long type, it is coerced into that range:

• Long.MIN_VALUE is returned if it's less than Long.MIN_VALUE,
• Long.MAX_VALUE is returned if it's greater than Long.MAX_VALUE.

An infinite duration value is converted either to Long.MAX_VALUE or Long.MIN_VALUE depending on its sign.