diff --git a/src/time/strftime.c b/src/time/strftime.c
index dac64037fb241d91b2e5ef4140624b1507c81195..bc150139ee309b4990c9ad29041d8dd5f585c739 100644
--- a/src/time/strftime.c
+++ b/src/time/strftime.c
@@ -216,7 +216,7 @@ size_t __strftime_l(char *restrict s, size_t n, const char *restrict f, const st
 	const char *t;
 	int plus;
 	unsigned long width;
-	for (l=0; l+1<n; f++) {
+	for (l=0; l<n; f++) {
 		if (!*f) {
 			s[l] = 0;
 			return l;
@@ -230,14 +230,13 @@ size_t __strftime_l(char *restrict s, size_t n, const char *restrict f, const st
 		width = strtoul(f, &p, 10);
 		if (*p == 'C' || *p == 'F' || *p == 'G' || *p == 'Y') {
 			if (!width && p!=f) width = 1;
-			if (width >= n-l) return 0;
 		} else {
 			width = 0;
 		}
 		f = p;
 		if (*f == 'E' || *f == 'O') f++;
 		t = __strftime_fmt_1(&buf, &k, *f, tm, loc);
-		if (!t) return 0;
+		if (!t) break;
 		if (width) {
 			for (; *t=='+' || *t=='-' || (*t=='0'&&t[1]); t++, k--);
 			width--;
@@ -247,14 +246,17 @@ size_t __strftime_l(char *restrict s, size_t n, const char *restrict f, const st
 				s[l++] = '-';
 			else
 				width++;
-			if (width >= n-l) return 0;
-			for (; width > k; width--)
+			for (; width > k && l < n; width--)
 				s[l++] = '0';
 		}
-		if (k >= n-l) return 0;
+		if (k > n-l) k = n-l;
 		memcpy(s+l, t, k);
 		l += k;
 	}
+	if (n) {
+		if (l==n) l=n-1;
+		s[l] = 0;
+	}
 	return 0;
 }
 
diff --git a/src/time/wcsftime.c b/src/time/wcsftime.c
index 72af913775fa7084f686b4ebd456fe7902a1da5b..a2804ac8182cffadc3042eaa16838d93babd091e 100644
--- a/src/time/wcsftime.c
+++ b/src/time/wcsftime.c
@@ -16,7 +16,7 @@ size_t __wcsftime_l(wchar_t *restrict s, size_t n, const wchar_t *restrict f, co
 	const wchar_t *t;
 	int plus;
 	unsigned long width;
-	for (l=0; l+1<n; f++) {
+	for (l=0; l<n; f++) {
 		if (!*f) {
 			s[l] = 0;
 			return l;
@@ -30,14 +30,13 @@ size_t __wcsftime_l(wchar_t *restrict s, size_t n, const wchar_t *restrict f, co
 		width = wcstoul(f, &p, 10);
 		if (*p == 'C' || *p == 'F' || *p == 'G' || *p == 'Y') {
 			if (!width && p!=f) width = 1;
-			if (width >= n-l) return 0;
 		} else {
 			width = 0;
 		}
 		f = p;
 		if (*f == 'E' || *f == 'O') f++;
 		t_mb = __strftime_fmt_1(&buf, &k, *f, tm, loc);
-		if (!t_mb) return 0;
+		if (!t_mb) break;
 		k = mbstowcs(wbuf, t_mb, sizeof wbuf / sizeof *wbuf);
 		if (k == (size_t)-1) return 0;
 		t = wbuf;
@@ -50,14 +49,17 @@ size_t __wcsftime_l(wchar_t *restrict s, size_t n, const wchar_t *restrict f, co
 				s[l++] = '-';
 			else
 				width++;
-			if (width >= n-l) return 0;
-			for (; width > k; width--)
+			for (; width > k && l < n; width--)
 				s[l++] = '0';
 		}
-		if (k >= n-l) return 0;
+		if (k >= n-l) k = n-l;
 		wmemcpy(s+l, t, k);
 		l += k;
 	}
+	if (n) {
+		if (l==n) l=n-1;
+		s[l] = 0;
+	}
 	return 0;
 }