Input

 utc1

    Binary timestamp or relative binary timestamp.

 utc2

    Binary timestamp or relative binary timestamp.

    Output

 result

    Resulting binary timestamp or relative binary timestamp,
    depending on the operation performed:

    o  relative time + relative time = relative time

    o  absolute time + relative time = absolute time

    o  relative time + absolute time = absolute time

    o  absolute time + absolute time is undefined. See NOTES.