@lacspace/interval
Time ranges, date iteration and business-day math — overlaps, merge, free/busy invert, eachDay/Week/Month and business-day add/subtract, now with coverage/utilization, gaps, total covered duration, peak concurrency and interval algebra (contains/shift/expand). Zero-dependency, isomorphic.
npm i @lacspace/intervalKeywords
More in Dates & Time
An immutable date-time toolkit — arithmetic, start/end of unit, diff & breakdown, comparison, token format/parse and ISO, now with relative-time ("3 hours ago"), business-day math with injectable holidays and a month calendar-grid builder — a tiny date-fns/dayjs with no dependencies. Zero-dependency, isomorphic.
@lacspace/durationA Duration type — parse, build, normalize and do arithmetic on ISO-8601 time spans, calendar-honest about months & years (never silently assumes a 30-day month). Now with an optional humanizer, HH:MM:SS clock format/parse and clamp/sum/rebalance helpers. Zero-dependency, isomorphic.
@lacspace/timezoneAn IANA timezone toolkit built on Intl — DST-correct offsets, wall-clock parts, zoned↔UTC conversion and DST detection, now with zoned string/abbreviation formatting, zone-vs-zone comparison and forward/backward/range transition scanning. No bundled tz database, so it stays tiny and always current. Zero-dependency, isomorphic.