val span_since_epoch : ( _, Core.Time_ns.Span.t, Core.Time_ns.t, [< Accessor_core__Import.isomorphism ] ) Accessor_base.t
Access the time as a span since
ofday present a time as a
Date.t * Time_ns.Ofday.t. They are not well behaved accessors during time shifts (e.g. when transitioning to or from daylight savings time). See the explanation of well-behaveness in the
module Span : sig ... end
Access a span as various units.