Time

Gives Claude native control over dates, times, and cron scheduling without pulling in heavy dependencies like Moment or date-fns. You get timezone conversion across IANA zones, business day calculations, date arithmetic (add/subtract days, months, years), and timestamp parsing in both directions. The cron tools are the standout: parse expressions into plain English, generate the next N run times, validate syntax, or go backwards from a description to a cron string. Also includes relative time formatting (time ago, countdowns) and duration parsing. Built entirely on JavaScript's Intl and Date APIs, so it's lean. Useful when Claude needs to schedule things, compare dates across regions, or explain when a job will run.