Types told apart
Pages that set side by side registry types a reader mistakes for one another, with what separates them and the rules finetype uses.
Day-first vs month-first dates
How to tell a day-first date such as 31/01/2024 from a month-first one such as 01/31/2024: the field over 12, what to do when none is, and finetype's rules.
DMY Date (slash-separated) · MDY Date (slash-separated) · DMY Date (dash-separated) · MDY Date (dash-separated)
Decimal comma vs decimal point
How to tell a decimal comma such as 1.234,56 from a decimal point such as 1234.56: the values that decide, the ones that cannot, and how finetype reads each.
Unix timestamp: seconds, ms, µs or ns
How to tell a Unix timestamp in seconds from one in milliseconds, microseconds or nanoseconds: digit counts, the dates each gives, and finetype's rules.
Unix Timestamp (seconds) · Unix Timestamp (milliseconds) · Unix Timestamp (microseconds) · Unix Epoch Nanoseconds
ISO 8601 vs RFC 3339 timestamps
How to tell an ISO 8601 timestamp from an RFC 3339 one: a T or a space between date and time, a Z, an offset or no zone, and the rules finetype uses.
ISO 8601 · ISO 8601 with Timezone Offset · ISO Datetime, second precision (no timezone) · ISO with Space Separator and Z · RFC 3339 (Space Separator)