Options.Time

The options-time package provides OptionType implementations and associated SimpleOption instances for types related to dates and times.

Documentation

optionType_duration :: OptionType DiffTime

Store an option as a DiffTime. The duration is specified in a format such as "2h30m" for two hours and thirty minutes.

Available units are:

• "h" for hours.
• "m" for minutes.
• "s" for seconds.
• "ms" for milliseconds.
• "us" or "µs" for microseconds.
• "ns" for nanoseconds.
• "ps" for picoseconds.

Larger units are not available to avoid ambiguity when dealing with daylight savings time.

optionType_date :: OptionType Day

Store an option as a Day. Supported formats are:

• "YYYY-MM-DD"
• "YYYYMMDD"
• "YYYY-DDD"

optionType_time :: OptionType TimeOfDay

Store an option as a TimeOfDay. Supported formats are:

• "HH:MM"
• "HH:MM:SS"
• "HH:MM:SS.FFFF"

For example, the value "10:11:12.5" is half a second past 10:11:12 AM.

optionType_localTime :: OptionType LocalTime

Store an option as a LocalTime. Supported formats are a combination of those for optionType_date and optionType_time.

optionType_utcTime :: OptionType UTCTime

Store an option as a UTCTime. Supported formats are a combination of those for optionType_date and optionType_time.

optionType_zonedTime :: OptionType ZonedTime

Store an option as a ZonedTime. Supported formats are a combination of those for optionType_date and optionType_time.