im wondering if it is possible to have a jquery countdown to 4:20pm and while its on 4:20pmto show a image and then when it gets to 4:21pm it starts counting down till 4:20am and do the same then.
To make it simple, you can include the current time in a string, compare it with another string which is the time you want to set.
If the comparison is true, the image will be displayed... otherwise not.