(Python 3.10.2/dateparser 1.1.8 ``` >>> DAYS = ["Mo", "Tu", "We", "Th", "Fr", "Sa", "Su"] >>> for d in DAYS: ... print(dateparser.parse(d)) ... 2023-06-19 00:00:00 None None None 2023-06-16 00:00:00 2023-06-17 00:00:00 2023-02-19 00:00:00 >>> ``` Dateparser can identify `Mo/Fr/Sa/Su` as days of the week on their own but not `Tu/We/Th` - is this by design - perhaps because they'd be ambiguous?