///
/// This method does **not** return the length of the duration when
/// represented by milliseconds. The returned number always represents a
- /// fractional portion of a second (i.e. it is less than one thousand).
+ /// fractional portion of a second (i.e., it is less than one thousand).
///
/// # Examples
///
///
/// This method does **not** return the length of the duration when
/// represented by microseconds. The returned number always represents a
- /// fractional portion of a second (i.e. it is less than one million).
+ /// fractional portion of a second (i.e., it is less than one million).
///
/// # Examples
///
///
/// This method does **not** return the length of the duration when
/// represented by nanoseconds. The returned number always represents a
- /// fractional portion of a second (i.e. it is less than one billion).
+ /// fractional portion of a second (i.e., it is less than one billion).
///
/// # Examples
///