CST/CDT to GMT

CSTCDTGMT 01:00 1.00am 02:00 2.00am 07:00 7.00am 02:00 2.00am 03:00 3.00am 08:00 8.00am 03:00 3.00am 04:00 4.00am 09:00 9.00am 04:00 4.00am 05:00 5.00am 10:00 10.00am 05:00 5.00am 06:00 6.00am 11:00 11.00am 06:00 6.00am 07:00 7.00am 12:00 Noon 07:00 7.00am 08:00 8.00am 13:00 1.00pm 08:00 8.00am 09:00 9.00am 14:00 2.00pm 09:00 9.00am 10:00 10.00am 15:00 3.00pm… Continue reading CST/CDT to GMT

Time conversion table among EST, EDT, and GMT.

EST EDT GMT 01:00 1.00am 02:00 2.00am 06:00 6.00am 02:00 2.00am 03:00 3.00am 07:00 7.00am 03:00 3.00am 04:00 4.00am 08:00 8.00am 04:00 4.00am 05:00 5.00am 09:00 9.00am 05:00 5.00am 06:00 6.00am 10:00 10.00am 06:00 6.00am 07:00 7.00am 11:00 11.00am 07:00 7.00am 08:00 8.00am 12:00 Noon 08:00 8.00am 09:00 9.00am 13:00 1.00pm 09:00 9.00am 10:00 10.00am… Continue reading Time conversion table among EST, EDT, and GMT.

What’s the internal details for ‘-startdate’ option in ‘qemu-kvm’

When you run KVM-based virtual machine, you can specify '-startdate' option. What format we can use and what actions are happening inside the qemu-kvm. Options are checked in main() function in vl.c. case QEMU_OPTION_startdate: { struct tm tm; time_t rtc_start_date; if (!strcmp(optarg, "now")) { rtc_date_offset = -1; } else { if (sscanf(optarg, "%d-%d-%dT%d:%d:%d", &tm.tm_year, &tm.tm_mon,… Continue reading What’s the internal details for ‘-startdate’ option in ‘qemu-kvm’