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If you create a new ScheduledItem object and look at the StartDate - it's 1/1/1990 - why? This has just caught me out when trying to evaluate whether the dates have been set or whether they're, what I was guessing would be, MinDate.

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up vote 2 down vote accepted

Normally, if scheduling is activated on a SharePoint list, while adding a new item into the list, there are 2 options in the scheduled start date. Its either a "Scheduled Date" or "Immediately".

If a new list item is created to schedule immediately, these items would have a start date that is prior to the current date and internally SharePoint keeps this as "1/1/1990" to make it before the current date and to get it approved it in the next cycle asap. A similar explanation is given in the msdn article here which you can go through.

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Thanks Deepu - I understand the way scheduling works and how the date must be previous to the current date for the immediacy of publishing, but I don't get why it's 1990. MinDate would've done!? My reason for asking comes from the worry that it's not an actual hard-coded value SharePoint comes with but in fact calculated in some way - in which case I'd need to know about it for what I'm developing. Thanks again, +1. – JᴀʏMᴇᴇ Aug 30 '12 at 11:40
There is a similar post -… which says that if you try to insert the value 1/1/1800 in a Sharepoint Date and Time field manually (using Sharepoint forms) you receive this error: "You must specify a valid date within the range of 1/1/1900 and 12/31/8900." Therefore, SharePoint only accepts value between 1/1/1900 and 12/31/8900. That means, this could be some kind of a min date for SharePoint. :) – Deepu Nair Aug 30 '12 at 12:22
Ahh thanks a lot Deepu, big help that. – JᴀʏMᴇᴇ Aug 30 '12 at 12:35

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