rust-lang/rust — pull request #18563 by 1-more (2014-11-03 05:27:29+00:00)
Title: libstd’s Duration refactor

This commit changes the internal representation of Duration from

pub struct Duraion {
secs: i64,
nanos: i32
}

to

/// An absolute amount of time, independent of time zones
/// and calendars with tick precision. A single tick
/// represents 100 nanoseconds.
pub struct Duration(pub i64)

Closes #18166,#18416.