diff --git a/bits/wordsize.h b/bits/wordsize.h
index 14edae3a11..e20fd2e4c2 100644
--- a/bits/wordsize.h
+++ b/bits/wordsize.h
@@ -19,9 +19,3 @@
__WORDSIZE is 32 and ptrdiff_t is type 'int' and leave undefined if
__WORDSIZE is 64. */
#define __WORDSIZE32_PTRDIFF_LONG
-
-/* Set to 1 in order to force time types to be 32 bits instead of 64 bits in
- struct lastlog and struct utmp{,x} on 64-bit ports. This may be done in
- order to make 64-bit ports compatible with 32-bit ports. Set to 0 for
- 64-bit ports where the time types are 64-bits or for any 32-bit ports. */
-#define __WORDSIZE_TIME64_COMPAT32
diff --git a/sysdeps/aarch64/bits/wordsize.h b/sysdeps/aarch64/bits/wordsize.h
index ee01841773..adc083d662 100644
--- a/sysdeps/aarch64/bits/wordsize.h
+++ b/sysdeps/aarch64/bits/wordsize.h
@@ -24,5 +24,3 @@
# define __WORDSIZE32_SIZE_ULONG 1
# define __WORDSIZE32_PTRDIFF_LONG 1
#endif
-
-#define __WORDSIZE_TIME64_COMPAT32 0
diff --git a/sysdeps/mips/bits/wordsize.h b/sysdeps/mips/bits/wordsize.h
index d14f497895..3af04daea6 100644
--- a/sysdeps/mips/bits/wordsize.h
+++ b/sysdeps/mips/bits/wordsize.h
@@ -19,12 +19,6 @@
#define __WORDSIZE _MIPS_SZPTR
-#if _MIPS_SIM == _ABI64
-# define __WORDSIZE_TIME64_COMPAT32 1
-#else
-# define __WORDSIZE_TIME64_COMPAT32 0
-#endif
-
#if __WORDSIZE == 32
#define __WORDSIZE32_SIZE_ULONG 0
#define __WORDSIZE32_PTRDIFF_LONG 0
diff --git a/sysdeps/powerpc/powerpc32/bits/wordsize.h b/sysdeps/powerpc/powerpc32/bits/wordsize.h
index 04ca9debf0..df1aa27244 100644
--- a/sysdeps/powerpc/powerpc32/bits/wordsize.h
+++ b/sysdeps/powerpc/powerpc32/bits/wordsize.h
@@ -2,10 +2,8 @@
#if defined __powerpc64__
# define __WORDSIZE 64
-# define __WORDSIZE_TIME64_COMPAT32 1
#else
# define __WORDSIZE 32
-# define __WORDSIZE_TIME64_COMPAT32 0
# define __WORDSIZE32_SIZE_ULONG 0
# define __WORDSIZE32_PTRDIFF_LONG 0
#endif
diff --git a/sysdeps/powerpc/powerpc64/bits/wordsize.h b/sysdeps/powerpc/powerpc64/bits/wordsize.h
index 04ca9debf0..df1aa27244 100644
--- a/sysdeps/powerpc/powerpc64/bits/wordsize.h
+++ b/sysdeps/powerpc/powerpc64/bits/wordsize.h
@@ -2,10 +2,8 @@
#if defined __powerpc64__
# define __WORDSIZE 64
-# define __WORDSIZE_TIME64_COMPAT32 1
#else
# define __WORDSIZE 32
-# define __WORDSIZE_TIME64_COMPAT32 0
# define __WORDSIZE32_SIZE_ULONG 0
# define __WORDSIZE32_PTRDIFF_LONG 0
#endif
diff --git a/sysdeps/riscv/bits/wordsize.h b/sysdeps/riscv/bits/wordsize.h
index faccc71828..182e3d33a6 100644
--- a/sysdeps/riscv/bits/wordsize.h
+++ b/sysdeps/riscv/bits/wordsize.h
@@ -21,9 +21,3 @@
#else
# error unsupported ABI
#endif
-
-#if __riscv_xlen == 64
-# define __WORDSIZE_TIME64_COMPAT32 1
-#else
-# error "rv32i-based targets are not supported"
-#endif
diff --git a/sysdeps/s390/s390-32/bits/wordsize.h b/sysdeps/s390/s390-32/bits/wordsize.h
index 129e47182b..755050861e 100644
--- a/sysdeps/s390/s390-32/bits/wordsize.h
+++ b/sysdeps/s390/s390-32/bits/wordsize.h
@@ -7,5 +7,3 @@
# define __WORDSIZE32_SIZE_ULONG 1
# define __WORDSIZE32_PTRDIFF_LONG 0
#endif
-
-#define __WORDSIZE_TIME64_COMPAT32 0
diff --git a/sysdeps/s390/s390-64/bits/wordsize.h b/sysdeps/s390/s390-64/bits/wordsize.h
index 00e88b0628..01245a5b71 100644
--- a/sysdeps/s390/s390-64/bits/wordsize.h
+++ b/sysdeps/s390/s390-64/bits/wordsize.h
@@ -7,5 +7,3 @@
# define __WORDSIZE32_SIZE_ULONG 1
# define __WORDSIZE32_PTRDIFF_LONG 0
#endif
-
-#define __WORDSIZE_TIME64_COMPAT32 0
diff --git a/sysdeps/sparc/sparc32/bits/wordsize.h b/sysdeps/sparc/sparc32/bits/wordsize.h
index 2f66f10d72..10b73267f0 100644
--- a/sysdeps/sparc/sparc32/bits/wordsize.h
+++ b/sysdeps/sparc/sparc32/bits/wordsize.h
@@ -2,10 +2,8 @@
#if defined __arch64__ || defined __sparcv9
# define __WORDSIZE 64
-# define __WORDSIZE_TIME64_COMPAT32 1
#else
# define __WORDSIZE 32
-# define __WORDSIZE_TIME64_COMPAT32 0
# define __WORDSIZE32_SIZE_ULONG 0
# define __WORDSIZE32_PTRDIFF_LONG 0
#endif
diff --git a/sysdeps/sparc/sparc64/bits/wordsize.h b/sysdeps/sparc/sparc64/bits/wordsize.h
index 2f66f10d72..10b73267f0 100644
--- a/sysdeps/sparc/sparc64/bits/wordsize.h
+++ b/sysdeps/sparc/sparc64/bits/wordsize.h
@@ -2,10 +2,8 @@
#if defined __arch64__ || defined __sparcv9
# define __WORDSIZE 64
-# define __WORDSIZE_TIME64_COMPAT32 1
#else
# define __WORDSIZE 32
-# define __WORDSIZE_TIME64_COMPAT32 0
# define __WORDSIZE32_SIZE_ULONG 0
# define __WORDSIZE32_PTRDIFF_LONG 0
#endif
diff --git a/sysdeps/unix/sysv/linux/alpha/bits/wordsize.h b/sysdeps/unix/sysv/linux/alpha/bits/wordsize.h
index 74289c244a..6d955a9f27 100644
--- a/sysdeps/unix/sysv/linux/alpha/bits/wordsize.h
+++ b/sysdeps/unix/sysv/linux/alpha/bits/wordsize.h
@@ -16,4 +16,3 @@
. */
#define __WORDSIZE 64
-#define __WORDSIZE_TIME64_COMPAT32 0
diff --git a/sysdeps/unix/sysv/linux/powerpc/bits/wordsize.h b/sysdeps/unix/sysv/linux/powerpc/bits/wordsize.h
index 04ca9debf0..df1aa27244 100644
--- a/sysdeps/unix/sysv/linux/powerpc/bits/wordsize.h
+++ b/sysdeps/unix/sysv/linux/powerpc/bits/wordsize.h
@@ -2,10 +2,8 @@
#if defined __powerpc64__
# define __WORDSIZE 64
-# define __WORDSIZE_TIME64_COMPAT32 1
#else
# define __WORDSIZE 32
-# define __WORDSIZE_TIME64_COMPAT32 0
# define __WORDSIZE32_SIZE_ULONG 0
# define __WORDSIZE32_PTRDIFF_LONG 0
#endif
diff --git a/sysdeps/unix/sysv/linux/sparc/bits/wordsize.h b/sysdeps/unix/sysv/linux/sparc/bits/wordsize.h
index 7562875ee2..10b73267f0 100644
--- a/sysdeps/unix/sysv/linux/sparc/bits/wordsize.h
+++ b/sysdeps/unix/sysv/linux/sparc/bits/wordsize.h
@@ -2,10 +2,8 @@
#if defined __arch64__ || defined __sparcv9
# define __WORDSIZE 64
-# define __WORDSIZE_TIME64_COMPAT32 1
#else
# define __WORDSIZE 32
# define __WORDSIZE32_SIZE_ULONG 0
# define __WORDSIZE32_PTRDIFF_LONG 0
-# define __WORDSIZE_TIME64_COMPAT32 0
#endif
diff --git a/sysdeps/wordsize-32/bits/wordsize.h b/sysdeps/wordsize-32/bits/wordsize.h
index 759906a08d..869a7ab2aa 100644
--- a/sysdeps/wordsize-32/bits/wordsize.h
+++ b/sysdeps/wordsize-32/bits/wordsize.h
@@ -16,6 +16,5 @@
. */
#define __WORDSIZE 32
-#define __WORDSIZE_TIME64_COMPAT32 0
#define __WORDSIZE32_SIZE_ULONG 0
#define __WORDSIZE32_PTRDIFF_LONG 0
diff --git a/sysdeps/wordsize-64/bits/wordsize.h b/sysdeps/wordsize-64/bits/wordsize.h
index 44b9725814..8613a6cb3c 100644
--- a/sysdeps/wordsize-64/bits/wordsize.h
+++ b/sysdeps/wordsize-64/bits/wordsize.h
@@ -16,4 +16,3 @@
. */
#define __WORDSIZE 64
-#define __WORDSIZE_TIME64_COMPAT32 0
diff --git a/sysdeps/x86/bits/wordsize.h b/sysdeps/x86/bits/wordsize.h
index 70f652bca1..cf250cc6df 100644
--- a/sysdeps/x86/bits/wordsize.h
+++ b/sysdeps/x86/bits/wordsize.h
@@ -9,9 +9,6 @@
#endif
#ifdef __x86_64__
-# define __WORDSIZE_TIME64_COMPAT32 1
/* Both x86-64 and x32 use the 64-bit system call interface. */
# define __SYSCALL_WORDSIZE 64
-#else
-# define __WORDSIZE_TIME64_COMPAT32 0
#endif