| datetimeutils-package | Utilities for Dates and Times |
| convert_date | Convert Various Formats to Date |
| convert_tz | Convert a Timestamp from one Timezone to Another |
| date1904 | Is File Origin 1904? |
| datetimeutils | Utilities for Dates and Times |
| day_of_month | Handling and Manipulating Dates and Times |
| day_of_month<- | Handling and Manipulating Dates and Times |
| end_of_month | Handling and Manipulating Dates and Times |
| end_of_previous_month | Handling and Manipulating Dates and Times |
| end_of_previous_year | Handling and Manipulating Dates and Times |
| end_of_quarter | Handling and Manipulating Dates and Times |
| end_of_year | Handling and Manipulating Dates and Times |
| first_of_month | Handling and Manipulating Dates and Times |
| first_of_year | Handling and Manipulating Dates and Times |
| guess_datetime | Guess Timestamp Format |
| hour | Handling and Manipulating Dates and Times |
| is_businessday | Business Days |
| is_leapyear | Handling and Manipulating Dates and Times |
| is_weekend | Business Days |
| last_weekday | Functions for Computing Days of the Week |
| mday | Handling and Manipulating Dates and Times |
| mday<- | Handling and Manipulating Dates and Times |
| minute | Handling and Manipulating Dates and Times |
| month | Handling and Manipulating Dates and Times |
| month.abb.de.din1355.1 | Non-English Month Names and Abbreviations |
| month.name.de | Non-English Month Names and Abbreviations |
| next_bday | Business Days |
| next_businessday | Business Days |
| nth_day | Compute Reference Dates |
| nth_weekday | Functions for Computing Days of the Week |
| previous_businessday | Business Days |
| prev_bday | Business Days |
| rfc822t | Format Date and Time as Described in RFC 822 |
| roundPOSIXt | Round POSIXt Objects to Specified Interval |
| second | Handling and Manipulating Dates and Times |
| timegrid | POSIXct Time Grid |
| tznames | Timezone Names |
| year | Handling and Manipulating Dates and Times |