There is 1 hour timedifferense between iCloud.com and my iPhone 4S - it shows appointments 1 hour later on iclould.com (ex. 13.00 on iPhone and 14.00 on iCloud).

Hello samson71973,

You may have the wrong Time Zone set on either your iPhone or iCloud.com.

iOS: Troubleshooting issues with date and time

http://support.apple.com/kb/TS3920

iCloud: Change your calendar’s time zone

http://support.apple.com/kb/PH2677

Alternatively it may be that Time Zone support is causing the seeming discrepancy.

iOS: How to adjust Time Zone Support for calendars

http://support.apple.com/kb/HT4576

1. In iCloud Calendar, choose Preferences from the Action pop-up menu below the sidebar.
2. Click Advanced, select “Enable time zone support,” then click Save.

Cheers,

Allen

I just solved this problem.

Previously even though I carefully selected the right time zone every time I entered a calendar event in my iPhone, when it displayed, it showed a different time - 4 hours later.

So this is what I did.

First I opened iCloud and checked my settings to see that I was showing my current time zone, Atlantic Standard Time, correctly. Then I went into Settings on my iPhone, selecting 'Mail, contacts and Calendar' and checked the time zone setting in Calendars. It was showing a different time zone - London - so I changed it to my current location and now all my calendar entries show up at the correct time on my iPhone.

Hope that helps everyone who has been having this problem.

Mike