diff --git a/lib/modules/Calendar.pmod/Timezone.pmod b/lib/modules/Calendar.pmod/Timezone.pmod
index 6dfa05b70f68de2aa426dd22f483afb859138fd5..08bb8b57ac308f7396f934d3f44b4cbe50d66b52 100644
--- a/lib/modules/Calendar.pmod/Timezone.pmod
+++ b/lib/modules/Calendar.pmod/Timezone.pmod
@@ -1412,7 +1412,7 @@ class Runtime_timezone_compiler
    }
 
 // ----------------------------------------------------------------
-// Base class for daylight savings and war time rules
+// Base class for daylight-saving and war time rules
 // ----------------------------------------------------------------
 
 // ----------------------------------------------------------------
diff --git a/lib/modules/Calendar.pmod/mkrules.pike b/lib/modules/Calendar.pmod/mkrules.pike
index 4ea6341ee88d873403b9266eade53a74a94126ad..f9bf9fac0ec40bfbfdbafc8d0cdc7f3e5d4bb022 100644
--- a/lib/modules/Calendar.pmod/mkrules.pike
+++ b/lib/modules/Calendar.pmod/mkrules.pike
@@ -919,7 +919,7 @@ int main(int ac,array(string) am)
 
 string TZrules_base=
 #"// ----------------------------------------------------------------
-// Daylight savings and war time rules
+// Daylight-saving and war time rules
 //
 // NOTE: this file is generated by mkrules.pike;
 //       please do not edit manually /Mirar
diff --git a/lib/modules/Mysql.pmod/SqlTable.pike b/lib/modules/Mysql.pmod/SqlTable.pike
index fd889d515b9474f8c332c2fbbbbc26bef16317da..25357426788e0ecdb819cef31e92f1900222dfe7 100644
--- a/lib/modules/Mysql.pmod/SqlTable.pike
+++ b/lib/modules/Mysql.pmod/SqlTable.pike
@@ -65,7 +65,7 @@
 //! @note
 //! The handling of TIMESTAMP columns in MySQL (as of 5.1 at least)
 //! through UNIX_TIMESTAMP and FROM_UNIXTIME has one problem if the
-//! active time zone uses daylight savings time:
+//! active time zone uses daylight-saving time:
 //!
 //! Apparently FROM_UNIXTIME internally formats the integer to a MySQL
 //! date/time string, which is then parsed again to set the unix
diff --git a/src/builtin.cmod b/src/builtin.cmod
index 4baa18e2c96c36b2c23f886559332157339ef473..b13ab4c83bf2de0c07c419df49991ef59ad29db1 100644
--- a/src/builtin.cmod
+++ b/src/builtin.cmod
@@ -372,7 +372,7 @@ PIKECLASS TM
 
     /*! @decl int isdst
      *!
-     *! True if daylight savings are in effect.  If this field is -1
+     *! True if daylight-saving is in effect.  If this field is -1
      *! (the default) it (and the timezone info) will be updated
      *! automatically using the timezone rules.
      */
diff --git a/src/builtin_functions.c b/src/builtin_functions.c
index 6fa3e71bd524958f692b12955d07044941d16c60..6f62edefa595d3a01c306317ea4fde9c6a6b5996 100644
--- a/src/builtin_functions.c
+++ b/src/builtin_functions.c
@@ -5682,9 +5682,9 @@ PMOD_EXPORT void f_gmtime(INT32 args)
  *!   	@member int(0..365) "yday"
  *!   	  Day of the year.
  *!   	@member int(0..1) "isdst"
- *!   	  Is daylight savings time.
+ *!   	  Is daylight-saving time active.
  *!   	@member int "timezone"
- *!   	  Offset from UTC, including daylight savings time adjustment.
+ *!   	  Offset from UTC, including daylight-saving time adjustment.
  *!   @endmapping
  *!
  *! An error is thrown if the localtime(2) call failed on the system.
@@ -5693,7 +5693,7 @@ PMOD_EXPORT void f_gmtime(INT32 args)
  *!
  *! @note
  *!   Prior to Pike 7.5 the field @expr{"timezone"@} was sometimes not
- *!   present, and was sometimes not adjusted for daylight savings time.
+ *!   present, and was sometimes not adjusted for daylight-saving time.
  *!
  *! @seealso
  *!   @[Calendar], @[gmtime()], @[time()], @[ctime()], @[mktime()]
@@ -5976,7 +5976,7 @@ static int my_time_inverse (struct tm *target_tm, time_t *result, time_fn timefn
  *!   	@member int(0..) "year"
  *!   	  Year since 1900.
  *!   	@member int(0..1) "isdst"
- *!   	  Is daylight savings time.
+ *!   	  Is daylight-saving time active.
  *!   	@member int "timezone"
  *!   	  The timezone offset from UTC in seconds. If left out, the time
  *!       will be calculated in the local timezone.