#Noodel, 34 bytes
Ƈƈy”VẠṇ`DðC1}816ṚĊC:@-~ḂC'^D^#8Ụ İ
Try it:)
How it works
Ƈƈy”VẠṇ`DðC1}816ṚĊC:@-~ḂC'^D^#8Ụ İ
Ƈƈy # Gets the current year.
Ƈ # Gets the current time as an integer.
ƈy # Takes the integer and gets the current year from it.
”VẠṇ`DðC1}816ṚĊC:@-~ḂC'^D^#8Ụ İ # Creates the string.
”VẠṇ`DðC1}816ṚĊC:@-~ḂC'^D^#8Ụ # Pushes on the string "It's¤ð¤already,¤folks,¤go¤home." as an array splitting on the "ð" character where "¤" is a space.
# (space) NOOP that separates commands.
İ # Concatenate the array using the current year.
# Implicitly print to the screen.
<div id="noodel" code="Ƈƈy”VẠṇ`DðC1}816ṚĊC:@-~ḂC'^D^#8Ụ İ" input="" cols="40" rows="2"></div>
<script src="https://tkellehe.github.io/noodel/noodel-latest.js"></script>
<script src="https://tkellehe.github.io/noodel/ppcg.min.js"></script>
