real-time clock NAME rtc - real-time clock SYNOPSIS #include <linux/rtc.h> int ioctl( fd , RTC_ request , param );...enter a system sleep state until specified wakeup time NAME rtcwake - enter a system sleep state until specified wakeup time SYNOPSIS rtcwake [options] [......, in b relative, in b interactive); SetTimezone(in s timezone, in b interactive); SetLocalRTC(in b local_rtc, in b fix_system, in b interactive); SetNTP(in b use_ntp, in b inter…...clock drift factor. The file is read and write by hwclock (8); and read by programs like rtcwake to get RTC time mode. The file is usually located in /etc , but tools like hwclo…...e following commands are understood: status Show current settings of the system clock and RTC, including whether network time synchronization is active. If no command is specifi…...el reads at boot time in order to initialize the software clock. For further details, see rtc (4) and hwclock (8). The software clock, HZ, and jiffies The accuracy of various sy…...settings: •The system time •The system timezone •A boolean controlling whether the system RTC is in local or UTC timezone •Whether the time synchronization service is enabled/st…...settings: •The system time •The system timezone •A boolean controlling whether the system RTC is in local or UTC timezone •Whether the time synchronization service is enabled/st…...only effective on systems with a battery. Added in version 257. SuspendEstimationSec= The RTC alarm will wake the system after the specified timespan to measure the system batte…...only effective on systems with a battery. Added in version 257. SuspendEstimationSec= The RTC alarm will wake the system after the specified timespan to measure the system batte…...to the specified timestamp early during boot. It is not propagated to the hardware clock (RTC). Added in version 246. systemd.random_seed= Takes a base64 encoded random seed val…...not set correctly. Specifically, on systems that lack a battery-buffered Realtime Clock (RTC) it might be wise to enable systemd-time-wait-sync.service to ensure the clock is ad….... SuspendThenHibernate() results in the system being suspended, then later woken using an RTC timer and hibernated. The only argument is the polkit interactivity boolean interac…systemd system and service manager NAME systemd, init - systemd system and service manager SYNOPSIS /usr/lib/systemd/systemd [OPTIONS...] init [OPTIONS...] {COMMAND} DESCRIPTION sy…Execution environment configuration NAME systemd.exec - Execution environment configuration SYNOPSIS service .service, socket .socket, mount .mount, swap .swap DESCRIPTION Unit con…The D-Bus interface of systemd NAME org.freedesktop.systemd1 - The D-Bus interface of systemd INTRODUCTION systemd (1) and its auxiliary daemons expose a number of APIs over D-Bus.…...systemd.exec (5) AssertACPower= systemd.unit (5) AssertArchitecture= systemd.unit (5) AssertCPUFeature= systemd.unit (5) AssertCPUPressure= systemd.unit (5) AssertCPUs= systemd.…