Below is the list of tables from the database along with their columns and datatype. Need to generate an accurate SQL query for the question.
Only use the columns present in the respective table. Only use the columns which are required to generate the SQL query. Only use table joins if required and not otherwise.

### Tables ###
TABLE: CREATE TABLE table_name_83 (ground VARCHAR, competition VARCHAR, time VARCHAR)

### Question ###
What is the ground of the tim trophy competition, which had a time of 23:00 cet?

### Accurate SQL ###

SELECT ground FROM table_name_83 WHERE competition = "tim trophy" AND time = "23:00 cet"