Here is an example with custom date axis labels.
The locations are set by selecting “Labels” in the Axis settings.
The year, month, and day are generated using Expression columns.
These are then combined into the Days column using a seconds(year, month, day) function where the Type is set to “Date”. You could combine it into one expression but we left it separate for clarity.
The Labels column is created using a Mask column.
Does this help?