The invention provides a method for obtaining time information from received amplitude modulated time signals which comprise a multitude of time frames each having a constant duration, by the combination of the following steps: a) the received time signals are amplified through a controlled automatic gain control, b) the telegram of at least one received time signal is stored in a first memory toprovide a stored telegram; c) at least one change of the time signal amplitude is predetermined or determined in advance, whereby the amplitude change is longer in duration than a first preselected time duration ([Delta]t); and d) the automatic amplification or gain control is locked-in with a time reference to said at least one predetermined amplitude change. The invention also relates to a wireless clock receiving circuit and wireless clock for receiving time signals sent by an automatic time emitter and obtaining time information.