Julian supports displaying 11 different types of dates including:

- CCSDS Julian Date
- CNES Julian Date
- Dublin Julian Date
- Julian Date
- Lilian Date
- Mars Sol Date
- Modified Julian Date
- Rata Die
- Reduced Julian Date
- Truncated Julian Date
- Unix Time

To make things more efficient, Julian provides a calendar to view dates of days throughout the year. Tapping on these copies the date to your clipboard for easy use in other applications.

To make viewing dates easier, Julian includes the ability to display the current date as the badge icon. Simply give the app permission to send notifications. *(Julian will not send notifications other than updating the badge number which does not produce a banner notification)

For Apple Watch users, Julian supports numerous watch face complications to show the date in ways that fit your style.