https://community.blueprism.com/t5/Product-Forum/Sorting-collection-by-date-BST-issue/m-p/78717#M30713 Change your values to text and add a control column and sort by that instead. That would be the quick and dirty version at least. Tue, 22 May 2018 18:05:00 GMT Christopher 2018-05-22T18:05:00Z https://community.blueprism.com/t5/Product-Forum/Sorting-collection-by-date-BST-issue/m-p/78714#M30710 I have a collection of dates that I use the Collection Manipulation action "Sort Collection", there are no other columns in the collection and the data type is set to Date (in both the input and output collections). Dates after the switch to BST are being moved back 1 day during the action, so 27th March becomes the 26th. I'm guessing this is because the Date Time is set to 27/03/2018 00:00 local time (even though the data isn't in this format), so when it sorts the data items it uses UTC meaning 27/03/2018 00:00 becomes 26/03/2018 23:00. Dates during GMT are not affected. Any ideas how to fix/get around this issue? Thu, 29 Mar 2018 13:08:00 GMT https://community.blueprism.com/t5/Product-Forum/Sorting-collection-by-date-BST-issue/m-p/78714#M30710 BenLyons1 2018-03-29T13:08:00Z https://community.blueprism.com/t5/Product-Forum/Sorting-collection-by-date-BST-issue/m-p/78715#M30711 Hi Guy's Having the same issue.  Has anyone figured out a solution? Thanks in advance! Mon, 14 May 2018 09:12:00 GMT https://community.blueprism.com/t5/Product-Forum/Sorting-collection-by-date-BST-issue/m-p/78715#M30711 KasadorugePerer 2018-05-14T09:12:00Z https://community.blueprism.com/t5/Product-Forum/Sorting-collection-by-date-BST-issue/m-p/78716#M30712 Hi,   I've noticed this too and I am interested in understanding why.   Thanks Tue, 15 May 2018 03:41:00 GMT https://community.blueprism.com/t5/Product-Forum/Sorting-collection-by-date-BST-issue/m-p/78716#M30712 MaxMcConchie 2018-05-15T03:41:00Z https://community.blueprism.com/t5/Product-Forum/Sorting-collection-by-date-BST-issue/m-p/78717#M30713 Change your values to text and add a control column and sort by that instead. That would be the quick and dirty version at least. Tue, 22 May 2018 18:05:00 GMT https://community.blueprism.com/t5/Product-Forum/Sorting-collection-by-date-BST-issue/m-p/78717#M30713 Christopher 2018-05-22T18:05:00Z