Daytime cycle is going crazy and uncontrollable

So, everytime i log into minecraft and enter either a multiplayer or single player world the time of day goes mad. Every second it changes from day, to midday, to sunset, to midnight, then back to sunrise. It is very annoying and also very worrying. You may think i have a command block with a clock running into it with the command "/time add" but that cannot be a case as it happens on servers like the hive and hypixel. Please Help