GlobeTime / Developer time tools
Unix timestamp converter
Convert Unix seconds or milliseconds to UTC and an IANA time zone. Convert a batch of up to 100 values without uploading it.
Unix timestamp converter
ISO 8601 and local time converter
Example: 2026-10-29T15:00:00+01:00. An offset is required; a date without one does not identify an instant.
Convert several timestamps
One integer per line, up to 100 lines. Everything stays in this browser.