没有代码经验，简单粗暴的脚本，我直接放在 vimrc 中了~
代码如下：

function! PeriodicNotesNav(offs2,offs1,offset)
  let current_file = expand('%:t')

  if current_file =~ '^\d\d\d\d\.md$'
    let year = matchstr(current_file, '^\d\d\d\d')
    let year = year + a:offset
    if year >= 2000 && year <2030
        execute 'edit ' . year . '.md'
    endif

  elseif current_file =~ '^\d\d\d\d-\d\d\.md$'
    let year = matchstr(current_file, '^\d\d\d\d')
    let month = matchstr(current_file, '\d\d\d\d-\zs\d\d')
    let month = month + a:offset
    let year = year + a:offs1
    if month >0 && month < 13
        let month = printf('%02d', month)
        execute 'edit ' . year . '-' . month . '.md'
    endif

elseif current_file =~ '^\d\d\d\d-\d\d-\d\d\.md$'
    let year = matchstr(current_file, '^\d\d\d\d')
    let month = matchstr(current_file, '\d\d\d\d-\zs\d\d')
    let day = matchstr(current_file, '\d\d\d\d-\d\d-\zs\d\d')
    let day = day + a:offset
    let month = month + a:offs1
    let year = year + a:offs2
    if day > 0  && day < 32 &&  month > 0 && month < 13
        let day = printf('%02d', day)
        let month = printf('%02d', month)
        execute 'edit ' . year . '-' . month . '-' . day . '.md'
    endif
endif
endfunction

nnoremap <Right> :call PeriodicNotesNav(0,0,+1)<CR>
nnoremap <Left> :call PeriodicNotesNav(0,0,-1)<CR>
nnoremap <up> :call PeriodicNotesNav(0,+1,0)<CR>
nnoremap <down> :call PeriodicNotesNav(0,-1,0)<CR>
nnoremap <s-up> :call PeriodicNotesNav(+1,0,0)<CR>
nnoremap <s-down> :call PeriodicNotesNav(-1,0,0)<CR>
--
FROM 23.142.224.*