A calendar assembly providing day and date information and including date data (11), day names (13) and association means (14) for selectively associating said date data (11) with said day names (13). The date data (11) includes day and month date data (13) for a full calendar and the day names (13) comprises a series of ordered full week day names, the calendar assembly being regularly arranged information zones (12) and either day names (13) or date data (11) in said information zones (12) providing a sequence of day names (13) or date data (11) and the other of the day name (13) or date data (11) being provided separately of the information zones (12) and the association means (14) being operable to selectively align the date data (11) and the day names (13). When provided in the form of plurality of pages, a diary assembly is disclosed and each information zone (12) may include a writing zone. The association means (14) is a replaceable element alignable with the relevant date data (11) and the replaceable element is adapted to be adhered to or mechanically locked in its selected operative position.
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