CODE:
-------
u_int32 ntp;
	for(ntp=0 ; ntp<0xFFFF ; ntp+=600u) {
		char *buf = fstostr(rawtime);

		printf("---------- Output: %s, input:%zu \n", buf, ntp );
	}

OUTPUT:
---------
---------- Output: 203602140508, input:0
---------- Output: 203602140508, input:600
---------- Output: 203602140508, input:1200
---------- Output: 203602140508, input:1800
---------- Output: 203602140508, input:2400
---------- Output: 203602140508, input:3000
---------- Output: 203602140508, input:3600
---------- Output: 203602140508, input:4200
---------- Output: 203602140508, input:4800
---------- Output: 203602140508, input:5400
---------- Output: 203602140508, input:6000
---------- Output: 203602140508, input:6600
---------- Output: 203602140508, input:7200
---------- Output: 203602140508, input:7800
---------- Output: 203602140508, input:8400
---------- Output: 203602140508, input:9000
---------- Output: 203602140508, input:9600
---------- Output: 203602140508, input:10200
---------- Output: 203602140508, input:10800
---------- Output: 203602140508, input:11400
---------- Output: 203602140508, input:12000
---------- Output: 203602140508, input:12600
---------- Output: 203602140508, input:13200
---------- Output: 203602140508, input:13800
---------- Output: 203602140508, input:14400
---------- Output: 203602140508, input:15000
---------- Output: 203602140508, input:15600
---------- Output: 203602140508, input:16200
---------- Output: 203602140508, input:16800
---------- Output: 203602140508, input:17400
---------- Output: 203602140508, input:18000
---------- Output: 203602140508, input:18600
---------- Output: 203602140508, input:19200
---------- Output: 203602140508, input:19800
---------- Output: 203602140508, input:20400
---------- Output: 203602140508, input:21000
---------- Output: 203602140508, input:21600
---------- Output: 203602140508, input:22200
---------- Output: 203602140508, input:22800
---------- Output: 203602140508, input:23400
---------- Output: 203602140508, input:24000
---------- Output: 203602140508, input:24600
---------- Output: 203602140508, input:25200
---------- Output: 203602140508, input:25800
---------- Output: 203602140508, input:26400
---------- Output: 203602140508, input:27000
---------- Output: 203602140508, input:27600
---------- Output: 203602140508, input:28200
---------- Output: 203602140508, input:28800
---------- Output: 203602140508, input:29400
---------- Output: 203602140508, input:30000
---------- Output: 203602140508, input:30600
---------- Output: 203602140508, input:31200
---------- Output: 203602140508, input:31800
---------- Output: 203602140508, input:32400
---------- Output: 203602140508, input:33000
---------- Output: 203602140508, input:33600
---------- Output: 203602140508, input:34200
---------- Output: 203602140508, input:34800
---------- Output: 203602140508, input:35400
---------- Output: 203602140508, input:36000
---------- Output: 203602140508, input:36600
---------- Output: 203602140508, input:37200
---------- Output: 203602140508, input:37800
---------- Output: 203602140508, input:38400
---------- Output: 203602140508, input:39000
---------- Output: 203602140508, input:39600
---------- Output: 203602140508, input:40200
---------- Output: 203602140508, input:40800
---------- Output: 203602140508, input:41400
---------- Output: 203602140508, input:42000
---------- Output: 203602140508, input:42600
---------- Output: 203602140508, input:43200
---------- Output: 203602140508, input:43800
---------- Output: 203602140508, input:44400
---------- Output: 203602140508, input:45000
---------- Output: 203602140508, input:45600
---------- Output: 203602140508, input:46200
---------- Output: 203602140508, input:46800
---------- Output: 203602140508, input:47400
---------- Output: 203602140508, input:48000
---------- Output: 203602140508, input:48600
---------- Output: 203602140508, input:49200
---------- Output: 203602140508, input:49800
---------- Output: 203602140508, input:50400
---------- Output: 203602140508, input:51000
---------- Output: 203602140508, input:51600
---------- Output: 203602140508, input:52200
---------- Output: 203602140508, input:52800
---------- Output: 203602140508, input:53400
---------- Output: 203602140508, input:54000
---------- Output: 203602140508, input:54600
---------- Output: 203602140508, input:55200
---------- Output: 203602140508, input:55800
---------- Output: 203602140508, input:56400
---------- Output: 203602140508, input:57000
---------- Output: 203602140508, input:57600
---------- Output: 203602140508, input:58200
---------- Output: 203602140508, input:58800
---------- Output: 203602140508, input:59400
---------- Output: 203602140508, input:60000
---------- Output: 203602140508, input:60600
---------- Output: 203602140508, input:61200
---------- Output: 203602140508, input:61800
---------- Output: 203602140508, input:62400
---------- Output: 203602140508, input:63000
---------- Output: 203602140508, input:63600
---------- Output: 203602140508, input:64200
---------- Output: 203602140508, input:64800
---------- Output: 203602140508, input:65400