When does a woman pray Dhuhr on Friday: after the first call to prayer or the second?

It is permissible for a woman, and those in a similar category who are not obligated to attend Jumu'ah prayer, to pray Dhuhr after verifying that its time has begun and before Jumu'ah prayer. If the first Adhan (call to prayer) is made after the time for Dhuhr has begun, then there is no objection to praying at that time; otherwise, it is not permissible.