NASB 1995
You observe days and months and seasons and years.

American Standard Version
Ye observe days, and months, and seasons, and years.

Berean Study Bible
You are observing special days and months and seasons and years!

Douay-Rheims Bible
You observe days, and months, and times, and years.

English Revised Version
Ye observe days, and months, and seasons, and years.

King James Bible
Ye observe days, and months, and times, and years.

World English Bible
You observe days, months, seasons, and years.

Young's Literal Translation
days ye observe, and months, and times, and years!

Galatians 4:10 Additional Translations ...