as.timespan: Cast an object to a timespan
In parttime: Partial Datetime Handling

as.timespan

R Documentation

Cast an object to a timespan

Cast an object to a timespan

as.timespan(x, ..., format = parse_iso8601_datetime_as_timespan)

`x`	an object to cast
`...`	Additional arguments passed to `format` when a function is provided.
`format`	a `function` or `character` value. If a `function`, it should accept a character vector and return a matrix of parttime components. If a `character` it should provide a regular exprssion which contains capture groups for each of the parttime components. See parse_to_parttime_matrix's `regex` parameter for more details.