Hi there, I am developing a Zope Product in Python where I store my content objects in the ZODB. Furthermore, they are cataloged in a ZCatalog. The content objects have an attribute "creationdate" so I decided to add a DateIndex and a metadata column, both named "creationdate" in the ZCatalog. When I create a content object I was confused about the values the ZCatalog stores for the Index and for the metatype because the values differ from each other. I tried to pass different TimeStamps when a create a content object. Here is what I found out: Python TimeStamp : time.asctime() DateIndex value : 1073242818 Metadata value : Thu Jun 05 12:18:58 2003 Python TimeStamp : time.gmtime() DateIndex value : '' Metadata value : (2003, 6, 5, 10, 20, 6, 3, 156, 0) Python TimeStamp : time.localtime() DateIndex value : '' Metadata value : (2003, 6, 5, 12, 11, 13, 3, 156, 1) Python TimeStamp : time.time() DateIndex value : 1073242687 Metadata value : 1054807644.02 Python TimeStamp : DateTime.DateTime() DateIndex value : 1073242822 Metadata value : 2003/06/05 12:22:36.673 GMT+2 This shows the different values stored for the DateIndex and the Metadata column in the ZCatalog. I thought, these magic "1073242..." values stored for the DateIndex "creationdate" have something to do with the float value since the epoch (1970/01/01) which can be returned by time.time(). But the value of the DateIndex (1073242687) differs so much from the value of the metadata (1054807644.02). When I used time.time() one time it stored "1054807644.02" for the DateIndex, but this happened only once ! So, here are my questions: - Why does the DateIndex value differs so much from the metadata value ? - How can I search for content objects that are created at 2003/06/05 for instance ? - Which TimeStamp should I use when I create a content object ? My configuration: (Zope 2.6.0 (binary release, python 2.1, win32-x86), python 2.1.3, win32) Thank you in advance. regards, nico ______________________________________________________________________________ UNICEF bittet um Spenden fur die Kinder im Irak! Hier online an UNICEF spenden: https://spenden.web.de/unicef/special/?mc=021101