Add a specified duration to the timestamp provided.

Convert decimal unix timestamp in a int64 unix timestamp.

Return true if the UNIX timestamp it is inside a range [start, start + duration] target: The timestamp that where we want make the check.

Return true if the UNIX timestamp it is inside a range [start, start + months] target: The timestamp that where we want make the check.

Count the number of occurrence that are inside the following.

Return true if the first and second unix timestamp defined in seconds are inside the same day.

Return true if the first and second unix timestamp definied in seconds are inside the same month.

Return true if the first and second unix timestamp defined in seconds are inside the same year.

Subtract a specified duration to the timestamp provided.