Add returns the time t+d, using a configurable mode.

AddMicros adds the microsecond delta to the provided time value.

Decode reverses the three integers returned from Encode and produces an equal Duration to the original.

DecodeDuration returns a Duration without rounding nanos.

DiffMicros computes the microsecond difference between two time values.

FromBigInt converts a big.Int number of nanoseconds to a duration.

FromFloat64 converts a float64 number of seconds to a duration.

FromInt64 converts an int64 number of seconds to a duration.

MakeDuration returns a Duration rounded to the nearest microsecond.

Truncate returns a new duration obtained from the first argument by discarding the portions at finer resolution than that given by the second argument.

AdditionModeCompatible applies a date-normalization strategy which produces results which are more compatible with PostgreSQL in which adding a month "rounds down" to the last day of a month instead of producing a value in the following month.

AdditionModeLegacy delegates to time.Time.AddDate() for performing Time+Duration math.

ErrEncodeOverflow is returned by Encode when the sortNanos returned would have overflowed or underflowed.

A Duration represents a length of time.

Context is used to prevent a package-dependency cycle via tree.EvalContext.

AdditionMode controls date normalization behaviors in Add().