how to insert a date?

In the Data_poslednego_TO-1 field, some zeros are inserted, the Date type field, how to insert the date?

Answer 1, Authority 100%

UPDATE `to-1` SET `id_work`='$list3', `id_mesta`='$list4',`Data_poslednego_TO-1`=NOW()

What can DB Server, it is better to give him.

Answer 2, Authority 50%

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