3 files changed, 91 insertions, 0 deletions
diff --git a/epoch.c b/epoch.c
new file mode 100644
index 0000000..b1450db
--- /dev/null
+++ b/epoch.c
@@ -0,0 +1,12 @@
+#include <stdio.h>
+#include <time.h>
+
+int main() {
+    time_t now;
+    
+    now = time(NULL);  // Get current time
+    
+    printf("Seconds since epoch: %ld\n", (long)now);
+    
+    return 0;
+}
diff --git a/localutc.c b/localutc.c
new file mode 100644
index 0000000..3f2334e
--- /dev/null
+++ b/localutc.c
@@ -0,0 +1,36 @@
+#include <stdio.h>
+#include <time.h>
+
+int main() {
+    time_t now = time(NULL);
+    struct tm local_time, utc_time;
+    struct tm *temp;
+    char local_buffer[100];
+    char utc_buffer[100];
+    
+    // Get local time and copy it
+    temp = localtime(&now);
+    if (temp == NULL) {
+        fprintf(stderr, "Error: localtime() failed\n");
+        return 1;
+    }
+    local_time = *temp;
+    
+    // Get UTC time and copy it
+    temp = gmtime(&now);
+    if (temp == NULL) {
+        fprintf(stderr, "Error: gmtime() failed\n");
+        return 1;
+    }
+    utc_time = *temp;
+    
+    // Format into separate buffers
+    strftime(local_buffer, sizeof(local_buffer), "%Y-%m-%d %H:%M:%S", &local_time);
+    strftime(utc_buffer, sizeof(utc_buffer), "%Y-%m-%d %H:%M:%S", &utc_time);
+    
+    // Now print (order doesn't matter - data is safe)
+    printf("Local time: %s\n", local_buffer);
+    printf("UTC time:   %s\n", utc_buffer);
+    
+    return 0;
+}
diff --git a/timezones.c b/timezones.c
new file mode 100644
index 0000000..45a5b3f
--- /dev/null
+++ b/timezones.c
@@ -0,0 +1,43 @@
+#include <stdio.h>
+#include <time.h>
+#include <stdlib.h>
+
+int main() {
+    time_t now = time(NULL);
+    struct tm local_time;
+    struct tm *temp;
+    char default_buffer[100];
+    char ny_buffer[100];
+    char tokyo_buffer[100];
+    
+    // Get default time zone
+    temp = localtime(&now);
+    if (temp == NULL) return 1;
+    local_time = *temp;
+    strftime(default_buffer, sizeof(default_buffer), "%Y-%m-%d %H:%M:%S %Z", &local_time);
+    
+    // Change to New York time
+    setenv("TZ", "America/New_York", 1);
+    tzset();
+    
+    temp = localtime(&now);
+    if (temp == NULL) return 1;
+    local_time = *temp;
+    strftime(ny_buffer, sizeof(ny_buffer), "%Y-%m-%d %H:%M:%S %Z", &local_time);
+    
+    // Change to Tokyo time
+    setenv("TZ", "Asia/Tokyo", 1);
+    tzset();
+    
+    temp = localtime(&now);
+    if (temp == NULL) return 1;
+    local_time = *temp;
+    strftime(tokyo_buffer, sizeof(tokyo_buffer), "%Y-%m-%d %H:%M:%S %Z", &local_time);
+    
+    // Now print all three (safe - each has its own buffer)
+    printf("Default:    %s\n", default_buffer);
+    printf("New York:   %s\n", ny_buffer);
+    printf("Tokyo:      %s\n", tokyo_buffer);
+    
+    return 0;
+}