Maybe the event timezone is set wrong in Thunderbird? You can choose to show the event timezone from Options menu in event dialog. You can also change the default in Thunderbird settings for calendar.

If these look correct however.. Can you select the problematic event in Thunderbird calendar, right-click it, select copy and then paste the resulting text here? (you can edit parts of confidential info out but try to change as little as possible)

Vinay Zinzuvadiya said

Hello, From specific Mozilla Thunderbird installed PC while receiving the meeting request on my outlook 2013 I am always getting meeting request for + 5.30 time ahead for example : Mozilla Thunderbird Sending : meeting at 9.30 PM to 10.30 PM IST (14th May 2015) My outlook 2013 showing : 3 AM to 4 AM IST (15th May 2015) Mozilla Thunderbird version : 38.0.1 Lightning version : 4.0.0.1 I have checked all the time related setting on sender PC and all are correct Please find the attached files screen shot of sender and receiver

Hello ,

Thank you so much for reply , but before your post i have checked the calendar option and found that there was no closet city selected its was blank and after selection the required the issue get resolved , see the attached screen shot

Thank you for all support

Regards Vinay ZinZuvadiya