Dates in Todoist

Todoist has a built in calendar that let's you specify due dates on your items. You add dates in the date text box, an example:

Dates text box

Contextual dates

You can write humane dates, e.g. today at 10 will be understood as at 10:00.
You write It means
today or tod
tomorrow or tom
friday or fri
next friday or next fri
tom @ 16:30 @ 16:30
fri at 2pm @ 14:00

Real dates

Real dates are also supported, e.g. 10. May @ 2pm will be understood as at 2pm.
You write It means
10
10/5
10/5/2006 @ 2pm at 2pm
+5 5 days from now:

Recurring dates (simple)

Recurring dates are supported and when you complete a recurring item, it won't be completed, but the next date will be selected.
you write it means
every mon, fri @ 20:00 every monday and friday at 20:00
ev day @ 1pm every day at 1pm
ev 7 every 7 day in a month
ev 7 may every 7th may
ev 3 days every 3 days
ev every 13th may

Recurring dates (advanced)

you write it means
ev weekday or ev wday every weekday (monday to friday)
every last day or ev lday every last day of the month
every 2nd monday Every second monday in a month
ev other day starting 2. nov every other day starting 2. nov