Write / Read AML + date_time

I have problems reading and writing date_time attributes.
If I write the following dataset to an AML file:


regular Time date_time length = 4 days [25-jul-2010 0:00:00 CEST ; 28-jul-2010 19:00:00 CEST] 0.0
Date_time Temperature
Sun Jul 25 00:01:00 CEST 2010 15.3
Sun Jul 25 00:15:00 CEST 2010 15.6
Sun Jul 25 00:30:00 CEST 2010 15.7
...

I get:
regular Time date_time length = 0 days [17-aug-292278994 8:12:55 CET ; 2-dec-292269055 17:47:04 CET] 365.0
Date_time Temperature
? 15.3
? 15.6
? 15.7
...