Hello Jean,
thank's for your quick response.
Yes, with lower caps, it works, but not correct enough for me

The seconds are not considered in the calculation, only the rounded minutes.
So I will stay with my own sub-routine, that works, like I wish.

The second problem:
with numstr, I expect exactly the same, as it is in item[0] and obviously, it is not.
2436954.655556 ist not the same as 2436954.655555999838.
Till now, I importet more than 30 aaf-records and 95% shows a time, that is not correct.
e.g. 4:00:00 is 3:59:59. It's always just a second, but the numstr could be the answer.
A second in julian date is 0,0000115741, so woho knows...
Thanks and greetings from Sevelen

Charly