Calendar Keeper T-Shirts

A perfect gift for the stylish scheduler! Our t-shirts blend wit and personality, letting calendar enthusiasts wear their love for organization on their sleeve.

Sadie, I just heard something disturbing, and I think you're the only one who can tell me whether it's true. Youtube is telling me we've lived 300 years of phantom time. Pope Gregory XIII's math was off when he created our calendar, and this is actually the year 1717. What's more, the "Middle Ages" is just a fiction the pope created to explain his rounding error. You were there, Sadie ... Did King Arthur really exist? I'll tell you all about that nice boy, as soon as I demonstrate how we dealt w
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Sadie, I just heard something disturbing, and I think you're the only one who can tell me whether it's true. Youtube is telling me we've lived 300 years of phantom time. Pope Gregory XIII's math was off when he created our calendar, and this is actually the year 1717. What's more, the "Middle Ages" is just a fiction the pope created to explain his rounding error. You were there, Sadie ... Did King Arthur really exist? I'll tell you all about that nice boy, as soon as I demonstrate how we dealt w

from $29.00

Calendar Keeper T-Shirts Collection

Calendar Keeper Mugs

Discover more witty and creative mugs designed for calendar keepers—perfect to brighten their mornings and keep them inspired.

Calendar Keeper Pillows

Find cozy, decorative pillows tailored for calendar keepers to add charm and personality to their favorite spaces.

Calendar Keeper Prints

Browse inspiring prints ideal for those who love to organize and decorate with humor and creativity in mind.