diff --git a/src/main/kc/stdlib/limits.kc b/src/main/kc/stdlib/limits.kc
new file mode 100644
index 000000000..adb41c1b6
--- /dev/null
+++ b/src/main/kc/stdlib/limits.kc
@@ -0,0 +1,34 @@
+// Defines constants with the limits of fundamental integral types for the specific system and compiler implementation used.
+
+//TODO: Convert all limits to macros
+
+// Number of bits in a char object (byte)
+const char CHAR_BIT = 8;
+// Minimum value of char type
+const char CHAR_MIN = 0;
+// Maximum value of char type
+const char CHAR_MAX = 255;
+// Minimum value of signed char type
+const signed char SCHAR_MIN = -128;
+// Maximum value of signed char type
+const signed char SCHAR_MAX = 127;
+// Maximum value of unsigned char type
+const unsigned char UCHAR_MAX = 255;
+// Minimum value of unsigned short type
+const unsigned short USHRT_MAX = 65535;
+// Minimum value signed short type
+const short SHRT_MIN = -32768;
+// Maximum value of signed short type
+const short SHRT_MAX = 32767;
+// Minimum value of unsigned int type
+const unsigned int UINT_MAX = 65535;
+// Minimum value signed int type
+const int INT_MIN = -32768;
+// Maximum value of signed int type
+const int INT_MAX = 32767;
+// Maximum value of unsigned long type
+const unsigned long ULONG_MAX = 4194304;
+// Minimum value of signed long type
+const long LONG_MIN = -2097152;
+// Maximum value of signed long type
+const long LONG_MAX = 2097151;
diff --git a/src/main/kc/stdlib/stdint.kc b/src/main/kc/stdlib/stdint.kc
index ed2be59a1..cec1d6b9a 100644
--- a/src/main/kc/stdlib/stdint.kc
+++ b/src/main/kc/stdlib/stdint.kc
@@ -1,3 +1,4 @@
+// C standard library stdint.h
 // Defines a set of integral type aliases with specific width requirements, along with macros specifying their limits and macro functions to create values of these types.
 
 // Unsigned integer type with a width of exactly 8 bits
diff --git a/src/main/kc/stdlib/stdlib.kc b/src/main/kc/stdlib/stdlib.kc
index ec4a07429..9e69afc3d 100644
--- a/src/main/kc/stdlib/stdlib.kc
+++ b/src/main/kc/stdlib/stdlib.kc
@@ -1,3 +1,4 @@
+// C standard library stdlib.h
 // Implementation of functions found int C stdlib.h / stdlib.c
 import "string"
 
diff --git a/src/main/kc/stdlib/string.kc b/src/main/kc/stdlib/string.kc
index e8a6131e3..f27d81acf 100644
--- a/src/main/kc/stdlib/string.kc
+++ b/src/main/kc/stdlib/string.kc
@@ -1,4 +1,5 @@
-// Standard C strings.h - functions to manipulate C strings and arrays.
+// C standard library string.h
+// Functions to manipulate C strings and arrays.
 
 typedef word size_t ;
 
diff --git a/src/main/kc/stdlib/time.kc b/src/main/kc/stdlib/time.kc
index b2b4c44b5..72ce08e69 100644
--- a/src/main/kc/stdlib/time.kc
+++ b/src/main/kc/stdlib/time.kc
@@ -1,4 +1,5 @@
-// Implementation of library functions found in C standard library time.h
+// C standard library time.h
+//  Functions to get and manipulate date and time information.
 
 import "c64"
 
@@ -34,4 +35,3 @@ void clock_start(void) {
     *CIA2_TIMER_B_CONTROL = CIA_TIMER_CONTROL_START | CIA_TIMER_CONTROL_CONTINUOUS | CIA_TIMER_CONTROL_B_COUNT_UNDERFLOW_A;
     *CIA2_TIMER_A_CONTROL = CIA_TIMER_CONTROL_START | CIA_TIMER_CONTROL_CONTINUOUS | CIA_TIMER_CONTROL_A_COUNT_CYCLES;
 }
-