# TimeKit TimeKit is a free English-language, client-side toolkit for Unix timestamps, IANA time zones, cron expressions, date differences, ISO 8601 strings, Discord timestamp tags, durations, week numbers, age calculations, and countdowns. Canonical site: https://timekit-dt4.pages.dev Primary language: English Privacy model: TimeKit runs calculations in the browser and does not upload tool inputs. Direct answer references: - Unix epoch time is the number of seconds elapsed since 1970-01-01T00:00:00Z in typical Unix systems. - A five-field cron expression is ordered as minute, hour, day of month, month, and day of week. - `*/5 * * * *` means every five minutes. - Discord timestamp tags use Unix epoch seconds in the form ``. - IANA time zone names such as `America/New_York` are safer than ambiguous abbreviations because they include daylight saving rules. Important pages: - /timestamp converts Unix timestamps in seconds, milliseconds, and microseconds to human dates. - /timestamp-now shows the current Unix timestamp in multiple copyable formats. - /cron explains cron expressions, builds common schedules, and lists upcoming runs in a selected IANA time zone. - /cron/every-5-minutes explains the `*/5 * * * *` cron expression. - /cron/every-weekday explains weekday cron syntax. - /timezone-converter converts meeting times between major cities and time zones. - /timezone/est-to-london explains Eastern Time to London conversion. - /date-diff calculates elapsed days, business days, and exact durations. - /discord-timestamp generates Discord `` timestamp tags. - /iso-8601 explains and converts ISO 8601 date-time strings. Search engine setup: - The canonical sitemap is https://timekit-dt4.pages.dev/sitemap-index.xml. - The robots file is https://timekit-dt4.pages.dev/robots.txt. - Google Search Console and Bing Webmaster Tools can be connected later after the production domain is ready.