A duration a peer states is a plain count of seconds, so a sign, a decimal point or an exponent marks a value no
peer is required to understand: it is reported as missing rather than repaired, leaving the consumer to decide
what to make of it.
However far ahead a peer places a deadline, the duration reported stays within the range every recipient is
required to handle, so it is always safe to add to a clock reading.
The duration value states, in milliseconds, never negative and never longer than roughly sixty-eight
years; undefined if value is missing or states anything but a bare count of seconds
Parses a duration field value.
A duration a peer states is a plain count of seconds, so a sign, a decimal point or an exponent marks a value no peer is required to understand: it is reported as missing rather than repaired, leaving the consumer to decide what to make of it.
However far ahead a peer places a deadline, the duration reported stays within the range every recipient is required to handle, so it is always safe to add to a clock reading.