node uptime wrong

embetrix commented at 3:56 pm on January 17, 2026: none

Is there an existing issue for this?

I have searched the existing issues

Current behaviour

System is freshly booted but bitcoind show wrong uptime:

0root@raspberrypi5-c8-bf-64:~# bitcoin-cli -conf=/etc/bitcoin/bitcoin.conf uptime
120120688

My real uptime:

0root@raspberrypi5-c8-bf-64:~# uptime 
1 15:53:22 up 10 min,  0 user,  load average: 0.61, 0.56, 0.31

version:

 0root@raspberrypi5-c8-bf-64:~# bitcoind --version
 1Bitcoin Core daemon version v30.2.0 bitcoind
 2Copyright (C) 2009-2026 The Bitcoin Core developers
 3
 4Please contribute if you find Bitcoin Core useful. Visit
 5<https://bitcoincore.org/> for further information about the software.
 6The source code is available from <https://github.com/bitcoin/bitcoin>.
 7
 8This is experimental software.
 9Distributed under the MIT software license, see the accompanying file COPYING
10or <https://opensource.org/license/MIT>

bitcoin conf file:

 0root@raspberrypi5-c8-bf-64:~# cat /etc/bitcoin/bitcoin.conf 
 1#############################################################
 2# Bitcoin configuration file
 3#############################################################
 4pid=/run/bitcoin/bitcoind.pid
 5nodebuglogfile=1
 6datadir=/var/bitcoin
 7loglevel=info
 8proxy=127.0.0.1:9050
 9signer=/usr/bin/hwi
10
11# Settings for signet Network
12signet=1
13
14[signet]
15walletdir=/var/wallets
16listen=1
17bind=127.0.0.1
18port=38333
19
20# RPC Settings
21rpcuser=satobox
22rpcport=38332
23rpcbind=127.0.0.1
24rpcallowip=127.0.0.1
25rpcauth=satobox:3381456077fa06cabce053c62a368693$263f4f1cbdc1b4b25233385b931807508f5d8bd59d2c46dc418e4ea2b23dfd09
26rpccookiefile=/run/bitcoin/cookie
27rpccookieperms=group
28server=1
29deprecatedrpc=warnings

Expected behaviour

should show correct uptime

Steps to reproduce

just build new bitcoin core and test with commands above

Relevant log output

No response

How did you obtain Bitcoin Core

Compiled from source

What version of Bitcoin Core are you using?

v30.2

Operating system and version

linux

Machine specifications

raspberrypi5

pinheadmz commented at 4:10 pm on January 17, 2026: member

Just to be sure… is the clock on your system correct?

embetrix commented at 4:15 pm on January 17, 2026: none

@pinheadmz correct the rpi5 does not have an RTC backed up with a battery so if bitcoind start before the NTP is synchronized the bitcoin-cli uptime shows incorrect uptime

pinheadmz commented at 5:02 pm on January 17, 2026: member

What happens if the clock is correct when you start Bitcoin and still correct when you make the RPC?

l0rinc commented at 5:07 pm on January 17, 2026: contributor

I was able to reproduce the reported behavior on an RPi5 by simulating a large clock correction using regtest setmocktime (and also via explicit timedatectl set-ntp false)

 0$ cmake -B build -G Ninja -DCMAKE_BUILD_TYPE=Release && ninja -C build bitcoind bitcoin-cli -j$(nproc)
 1# ...
 2$ DATA_DIR=$(mktemp -d)
 3$ ./build/bin/bitcoind -regtest -datadir="$DATA_DIR" -connect=0 -daemon
 4Bitcoin Core starting
 5$ ./build/bin/bitcoin-cli -regtest -datadir="$DATA_DIR" -rpcwait uptime
 61
 7$ ./build/bin/bitcoin-cli -regtest -datadir="$DATA_DIR" setmocktime $(( $(date +%s) + 20000000 ))
 8$ ./build/bin/bitcoin-cli -regtest -datadir="$DATA_DIR" uptime
 920000001
10$ ./build/bin/bitcoin-cli -regtest -datadir="$DATA_DIR" stop
11Bitcoin Core stopping

I will push a fix for this to use a std::chrono::steady_clock instead.

l0rinc commented at 8:02 pm on January 17, 2026: contributor

Thanks for the report, fixed it in #34328 - if you can, please try it out locally to confirm

willcl-ark added the label Bug on Jan 20, 2026

node uptime wrong #34326