reading_time

Hi. I have a Bluehost mysql database and it works fine

CREATE TABLE Sensor (
    id INT(6) UNSIGNED AUTO_INCREMENT PRIMARY KEY,
    value1 VARCHAR(10),
    value2 VARCHAR(10),
    value3 VARCHAR(10),
    reading_time TIMESTAMP DEFAULT CURRENT_TIMESTAMP ON UPDATE CURRENT_TIMESTAMP
)

Is there a way to make reading_time UTC or european time?

My problem is that I have to add + 8 hours to display the graph, but sometimes it has to be + 7 hours

Regards

Esben