"Time flies when you're having rum"

“Time flies when you’re having fun” is a proverb that has been cited in print since 1933. “Time flies when you’re having rum” is a jocular variant that has been printed on many gift items, such as T-shirts and bumper stickers.

“Time flies when you’re having rum” has been cited in print since at least 2004. Erik Voskamp (cited by World’s Bars as “the first Dutch Rum advisor”) is sometimes credited for the saying.

“Wine flies when you’re having fun” is a related saying.

Wiktionary: time flies when you’re having fun
Proverb
time flies when you’re having fun
1. Time seems to pass quicker when one is enjoying oneself.

Google Books
Rules of Engagement
By Kathryn Caski
New York, NY: Warner Books
2004
Pg. ?:
“As they say, time flies when you’re having rum!”

Free Republic
Time flies when you’re having rum.
16 posted on 2/22/2004 6:45:16 PM by LonePalm (Commander and Chef)

Google News Archive
18 November 2007, The Blade (Toledo, OH), “St. Martin,” sec. 1, pg. 11, col. 2:
(At other times, beer is more likely, or as the tourist T-shirt quips: Time flies when you’re having rum.)

Google News Archive
1 April 2009, Ajo Copper News, “Ajo Community Golf Course” by Liz Baca, pg. 6, col. 1:
One Ajo golfer used to have a flag on his cart that said “Time flies when you’re having rum”’ and isn’t that the truth?

5 April 2010, Paris (TX) News, “Cruise statistics that impress” by Don Newbury, pg. 4, col. 4:
Port memories include a free trolley ride around San Juan and its four-centuries-old forts and castles, handcrafts at every stop and funny T-shirt messages.

Try these:

•“Don’t need encyclopedia, my wife knows everything”
•“I am NOT bossy; I just have better ideas”
•“Parrots of the Caribbean”
•“Time flies when you’re having rum”

Twitter
Leven in Nijverdal
‏@innijverdal
Winnaar van het tegeltje is geworden: Erik Voskamp met de tekst: “Time flies when you’re having rum”... http://fb.me/2UObW4hrQ
2:01 PM - 6 May 2014

Daily Leisure
August 15, 2014
Celebrate National Rum Day with the Captain and A Cupcake
(...)
“Time Flies When You’re Having RUM”
Erik Voskamp