Hello please help

I have updated my Windows 8 PC calendar (which is registered with my hotmail account) with all my diary dates, and I am trying to sync this with my hotmail account (which I access online). The events are being uploaded, however the timing of all events are in accurate. Any all-day events in my PC calendar seem to be getting synced as two-day events- therefore are looking very muddled in my diary. And consequently are not syncing to my tablet diary correctly. 

I am getting myself into a right pickle, please help! I have MS Office 2013

NB I thought it might have something to do with time zones, however all my calendars and devices are set to the same time zone, (which is Sydney, Australia). 

Thank you very much
Jasmine
I have downloaded Outlook Connector (32 bit version) but I can not determine how to use it to setup automatic updates from my PC calendar in Outlook 2007 to my Outlook.com calendar.  The OS on my PC is Vista Ultimate 64 bits.