diff --git a/docs/source/user-guide/sql/scalar_functions.md b/docs/source/user-guide/sql/scalar_functions.md
index ad4c6ed083bf..629a5f6ecb88 100644
--- a/docs/source/user-guide/sql/scalar_functions.md
+++ b/docs/source/user-guide/sql/scalar_functions.md
@@ -1410,6 +1410,7 @@ date_part(part, expression)
   The following date parts are supported:
 
   - year
+  - quarter _(emits value in inclusive range [1, 4] based on which quartile of the year the date is in)_
   - month
   - week _(week of the year)_
   - day _(day of the month)_
@@ -1421,6 +1422,7 @@ date_part(part, expression)
   - nanosecond
   - dow _(day of the week)_
   - doy _(day of the year)_
+  - epoch _(seconds since Unix epoch)_
 
 - **expression**: Time expression to operate on.
   Can be a constant, column, or function.
@@ -1448,6 +1450,7 @@ extract(field FROM source)
   The following date fields are supported:
 
   - year
+  - quarter _(emits value in inclusive range [1, 4] based on which quartile of the year the date is in)_
   - month
   - week _(week of the year)_
   - day _(day of the month)_
@@ -1459,6 +1462,7 @@ extract(field FROM source)
   - nanosecond
   - dow _(day of the week)_
   - doy _(day of the year)_
+  - epoch _(seconds since Unix epoch)_
 
 - **source**: Source time expression to operate on.
   Can be a constant, column, or function.