Timestamp Converter

Different systems express time in different epoch formats. The timestamp converter parses any of them and returns the others, with multi-timezone display and DST awareness.

Supported formats

Auto-detect

Paste any of the formats above (or a recognisable variation) and the converter detects the source and returns all the others. The auto-detect handles common ambiguities:

• A 10-digit number is most likely Unix seconds.
• A 13-digit number is most likely Unix milliseconds.
• An 18-digit number could be Windows FILETIME or Unix nanoseconds — the converter shows both.

Multi-timezone columns

For any input, the converter shows the result in:

• UTC.
• Your local timezone.
• A configurable list of additional timezones (default: New York, London, Berlin, Tokyo, Sydney).

Click "add timezone" to add any IANA timezone string.

DST flag and UTC offset

For each timezone column:

• The current UTC offset.
• Whether DST is currently in effect for that zone.
• Whether the converted timestamp falls in DST for that zone (different from "is DST in effect now" when the timestamp is in the past or future).

For investigations involving timestamps that cross DST boundaries, this is the cheap way to avoid an off-by-one-hour error.

Relative form

For Unix-style timestamps, the converter shows:

• "X minutes ago" / "X hours ago" / "X days ago" for past timestamps.
• "in X minutes" / "in X hours" / "in X days" for future timestamps.
• Absolute date for distant past or future.

Bulk conversion

Bulk paste accepts a list of timestamps (one per line). The converter applies the same auto-detect to each and returns the converted form per line. Output exports as CSV — useful for adding human-readable timestamps to logs.

Pivots

The timestamp converter does not pivot to other tools. It is a pure utility.

Sources

All conversion is local. The timezone catalog uses the system's IANA timezone database.