The time has changed a lot now, now the people are so busy that people are praying according to their time and convenience and there is nothing wrong with that because the direct relationship of the praying is to connect themselves to God and not to formality so that when Praise then when the time is right. In such a situation, there is no need to tell the time of prayer in the speakers to temples or other religious places. There is definitely a certain time in the Muslim community and people themselves know that time even if there is no announcement in the speaker even then they are aware that it is time for namaz. Once I saw a gentleman praying Namaz on the train, apparently, he did not know, from any speaker that it was time for the Namaz but he did so with his reverence and punctuality.
I find this decision appropriate because everyone has become very disturbed by the noise caused by the programs of worship or events. Our God listens to the voice of ours soul, for which no speaker is needed.
Keep your Face to the SunShine