DATE and TIME data types - Manual - AX2TIA - This package contains the documentation for ax2tia - Converting SIMATIC AX libraries to TIA Portal libraries,

These types are transformed into the corresponding (long) type in the TIA Portal with the exception of DATE and LDATE. Only DATE and LDATE cannot be converted to the TIA Portal. This is because DATE has a different memory size and LDATE is not supported in the TIA Portal.