指定時間にコマンドを実行したいのでもうちょっと頑張った

scriptencoding utf-8function!s:timerStart() abort
    lets:vialarmTimer= timer_start((60-(localtime()%60))*1000,function('s:getAlarm'))ifv:vim_did_enter
        echo '[vialarm]: Start vialarm.'endifendfunctionfunction!s:timerStop() abort
    call timer_stop(s:vialarmTimer)
    unlet s:vialarmTimer
    echo '[vialarm]: Stop vialarm.'endfunctionfunction!s:getAlarm(timer) abort
    let now = strftime('%H:%M', localtime())let autocmdText = execute('autocmd User')ifmatch(autocmdText,'^\s\+vialarm_'.now)>=0
        execute 'doautocmd User''vialarm_'.now
    endifif timer_info(s:vialarmTimer)[0].repeat >0lets:vialarmTimer= timer_start(60000,function('s:getAlarm'),{'repeat':-1})endifendfunctionfunction!s:addOneshot(time, command) abort
    tryifmatch(a:time,'^\d\d:\d\d$')<0throw'vialarm_E01'elseif matchstr(a:time,'^\d\d')>23|| matchstr(a:time,'\d\d$')>59throw'vialarm_E02'elseifa:command==# ''throw'vialarm_E03'endif

        execute 'augroup vialarm_oneshots'
        execute 'autocmd User''vialarm_'.a:time'++once'a:command
        execute 'augroup END'

        echo printf('[vialarm]: Added alarm in %s.',a:time)catch/vialarm_E01/echoerr'[vialarm]: Error: Time format must be ''HH:MM''.'catch/vialarm_E02/echoerr'[vialarm]: Error: No such time. :('catch/vialarm_E03/echoerr'[vialarm]: Error: Command is empty.'endtryendfunctionfunction!s:showAlarms() abort
    let autocmdText = split(execute('1verbose autocmd User'),'\n')[1:]let currentGroup =''let isHit =0letverbose=0

    echohl Title
    echo '[vialarm]: Current alarm is...'
    echohl None

    for txt in autocmdText
        ifmatch(txt,'^\S')>=0let currentGroup = txt
        elseifmatch(txt,'^\s\+vialarm')>=0if currentGroup !=# ''
                echohl Title
                echo currentGroup
                echohl None
                let currentGroup =''endif
            echo txt

            let isHit =match(txt,'\d\d:\d\d$')>=0letverbose=1elseif isHit
            echo txt
            let isHit =0elseifverbose
            echo txt
            letverbose=0endifendforendfunctionfunction!s:showTimerInfo() abort
    echohl Title
    if exists('s:vialarmTimer')
        echo '[vialarm]: Vialarm is running. Current timer information is...'
        echohl None

        let timerState = deepcopy(timer_info(s:vialarmTimer)[0])forkin keys(timerState)->filter('v:val !=? "callback"')
            echo printf('  %-10S: %d',k, timerState[k])endforelse
        echo '[vialarm]: Vialarm was stopped.'
        echohl None
    endifendfunctionfunction! vialarm#main(args, isBang) abort
    ifa:isBang==# ''ifa:args!=# ''let time = matchstr(a:args,'^\S*')let command = matchstr(a:args,'\s\zs.*$')calls:addOneshot(time, command)elsecalls:showAlarms()endifelseifa:args==? 'start'calls:timerStart()elseifa:args==? 'stop'calls:timerStop()elseifa:args==# ''calls:showTimerInfo()else
            echo '[vialarm]: Usage `:Vialarm! [(start|stop)]`'endifendifendfunction

scriptencoding utf-8

command -bang -nargs=* -complete=command Vialarm call vialarm#main(<q-args>,'<bang>')

Vialarm!start