You must enter a period month ^1 to ^2 or ^3 to ^4.

You must enter a period month 1 to 12 or Jan to Dec.

You can only enter month ^1 or ^2.

You must enter a period between 1 and ^1.

You can only enter period 1.

The date must be between 1 and 31

The date must be between 1 and 30

The date must be between 1 and 29

The date must be between 1 and 28

Could not understand the month.
The month can be 1..12 or Jan to Dec.

Could not understand the year.
The year must be 0..99, 19xx or 20xx.

Could not understand the date.
The date can be 1..31.

You must enter a date.