gnodev time.Now() drifting away from real time

[jefft0]

gnodev

Description

While using gnodev, time.Now() seems to drift as described below.

Your environment

• macOS Ventura 13.6.3
• Go 1.20.7
• Latest gnolang/gno as of posting
• Latest commit: c6097cd

Steps to reproduce

• Set up the test1 key for gnokey
• Install gnodev
• Start gnodev
• Register the test1 user, create a board and post with CreateThread as follows:

gnokey maketx call -pkgpath "gno.land/r/demo/users" -func "Register" -args "" -args "test_1" -args "Profile description" -gas-fee "10000000ugnot" -gas-wanted "2000000" -send "200000000ugnot" -broadcast -chainid tendermint_test -remote 127.0.0.1:36657 test1
gnokey maketx call -pkgpath "gno.land/r/demo/boards" -func "CreateBoard" -args "myboard" -gas-fee "1000000ugnot" -gas-wanted "5000000" -broadcast -chainid tendermint_test -remote 127.0.0.1:36657 test1
gnokey maketx call -pkgpath "gno.land/r/demo/boards" -func "CreateThread" -gas-fee 1000000ugnot -gas-wanted 5000000 -broadcast -chainid tendermint_test -args "1" -args " mytitle" -args "post at <current UTC time>" -remote "127.0.0.1:36657" test1

• Wait 5 minutes and post with CreateThread again.
• Wait another 5 minutes and post with CreateThread again.
• View the board at http://127.0.0.1:8888/r/demo/boards:myboard

Expected behaviour

The boards realm uses time.Now() for the displayed post time. This should match the real time when the post transaction is processed.

Actual behaviour

The value of time.Now() does not match the real time, as shown below. It looks like time.Now returns the time since the node started multiplied by some factor (about 2.2). If I post immediately after starting gnodev, time.Now() is correct. If I post 5 minutes after start, time.Now() is 11 minutes after start. If I post 10 minutes after start, time.Now() is 23 minutes after start. If I post 20 minutes after start, time.Now() is 44 minutes after start, etc. (This only happens in gnodev. If I run gnoland then the timestamps are correct.)