/var/log/wtmp
record of date resets and time changes
rdate8
Set the system's date from a remote host
Usage
rdate [-46anpsv]
host
Overview
rdate displays and sets the local date and time from the host name or address given as the argument. The time source is an RFC 5905 protocol SNTP/NTP server.
The options are as follows:
-
-4 -
Forces
rdateto use IPv4 addresses only. -
-6 -
Forces
rdateto use IPv6 addresses only. -
-a -
Use the adjtime(2) call to gradually skew the local time to the remote time rather than just hopping.
-
-n -
Use SNTP (RFC 5905). This is the default. This protocol counts 32 bits of seconds from January 1, 1900 and will handle rollover to a new NTP era in February 2036.
-
-p -
Do not set, just print the remote time.
-
-s -
Do not print the time.
-
-v -
Verbose output. Always show the adjustment.
Files
Releases
61 releases since OpenBSD 2.1; the text changed 21 times.
- 2.1
- 2.2–2.4
- 2.5
- 2.6
- 2.7–2.8
- 2.9
- 3.0–3.1
- 3.2
- 3.3
- 3.4
- 3.5
- 3.6–4.1
- 4.2–4.9
- 5.0–5.2
- 5.3
- 5.4–5.6
- 5.7–6.4
- 6.5–7.2
- 7.3–7.4
- 7.5–7.8
- 7.9
- 8.0
-4 since OpenBSD 3.5;
-6 since OpenBSD 3.5;
-n since OpenBSD 3.2;
-v since OpenBSD 3.2.
-c until OpenBSD 7.9;
-o until OpenBSD 7.8.