Time and identifiers

Learning objectives

• Identify the epoch and unit behind a timestamp
• Convert batches without losing item boundaries
• Explain UUID version and variant fields
• Translate symbolic UNIX permissions
• Parse URI and IPv6 fields rather than treating them as opaque strings

Timestamp labs

1. Install Convert a time zone and identify the source format, source zone, target zone, and output format.
2. Install Convert a list of UNIX timestamps and explain why Fork is placed first.
3. Install Convert Windows FILETIME and compare the Windows and UNIX epochs.

Identifier labs

• Analyse a UUID
• Parse UNIX file permissions
• Parse a URI
• Inspect a Teredo IPv6 address

For each result, distinguish values directly encoded in the identifier from interpretations added by the parser.

Assignment

Build a small synthetic timeline containing a UNIX timestamp, a Windows FILETIME value, and a human date with an explicit time zone. Convert them to a common UTC representation and record every unit and epoch assumption.