In the Northern Hemisphere

Thanksgiving cactus typically produce flowers from late October through mid-winter,
making them the earliest and longest bloomers.

Christmas cacti often bloom in the early to midwinter months.

Easter cacti flower around the middle of spring through late winter.

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I believe this is technically a "Thanksgiving Cactus"
since it was originally purchased in full bloom the day after Thanksgiving a number of years ago. But now, it blooms whenever it wants. This is a repeat blooming for this "year". It bloomed November 2022 through January 2023 and then took a break before starting to bloom again in April. It's still blooming almost 2 weeks past Easter this year and has plenty more new buds.