DATE(1)                       Cac cau l<?>nh                           DATE(1)

TEN
       date - print or set the system date and time

TOM T<?>T
       date [TUY_CH<?>N]<?> [+D<?>NH_D<?>NG]
       date [OPTION]... MMDDhhmm[[CC]YY][.ss]

MO T<?>
       Display date and time in the given FORMAT.  With -s, or with
       MMDDhhmm[[CC]YY][.ss], set the date and time first.

       Tuy ch<?>n dai yeu c<?>u d<?>i s<?> thi tuy ch<?>n ng<?>n cung v<?>y.

       -d, --date=STRING
              hi<?>n th<?> th<?>i gian theo CHU<?>I, khong ph<?>i "now"

       --debug
              di<?>n gi<?>i ngay thang da phan tich, va c<?>nh bao v<?> cach
              dung ra d<?>u ra tieu chu<?>n

       -f, --file=DATEFILE
              like --date; once for each line of DATEFILE; if DATEFILE is -,
              read names from standard input

       -I[FMT], --iso-8601[=FMT]
              output date/time in ISO 8601 format.  FMT='date' (default),
              'hours', 'minutes', 'seconds', or 'ns' for date and time to the
              indicated precision.  Example: 2006-08-14T02:34:56-06:00

       --resolution
              output the available resolution of timestamps.  Example:
              0.000000001

       -R, --rfc-email
              xu<?>t ngay gi<?> theo d<?>nh d<?>ng RFC 5322 format. Vi d<?>:
              Mon, 14 Aug 2006 02:34:56 +0000

       --rfc-3339=FMT
              dua ra ngay va gi<?> d<?>ng tuong thich RFC 3339.
              D<?>C_T<?>_GI<?> co gia tr<?> la "date" (ngay thang), "seconds"
              (giay) ho<?>c "ns" (nano-giay). cho th<?>i gian va ngay thang
              v<?>i d<?> chinh xac dua ra. Vi d<?>: 2006-08-14 02:34:56-06:00

       -r, --reference=FILE
              hi<?>n th<?> th<?>i gian s<?>a l<?>n cu<?>i c<?>a T<?>P TIN

       -s, --set=STRING
              d<?>t th<?>i gian theo m<?>u c<?>a CHU<?>I

       -u, --utc, --universal
              in ra hay d<?>t Th<?>i gian Qu<?>c t<?> (UTC)

       --help hi<?>n th<?> tr<?> giup nay r<?>i thoat

       --version
              dua ra thong tin phien b<?>n r<?>i thoat

       All options that specify the date to display are mutually exclusive.
       I.e.: --date, --file, --reference, --resolution.

       D<?>NH_D<?>NG di<?>u khi<?>n k<?>t xu<?>t. Cac chu<?>i du<?>c d<?>c:

       %%     m<?>t ch<?> cai %

       %a     ten vi<?>t t<?>t c<?>a ngay trong tu<?>n c<?>a mi<?>n d<?>a
              phuong (Th 3..CN)

       %A     ten d<?>y d<?> c<?>a ngay trong tu<?>n c<?>a mi<?>n d<?>a phuong
              (Th<?> hai..Ch<?> nh<?>t)

       %b     ten ng<?>n g<?>n c<?>a cac thang c<?>a mi<?>n d<?>a phuong (Thg
              1..Thg 12)

       %B     ten d<?>y d<?> c<?>a cac thang c<?>a mi<?>n d<?>a phuong (Thang
              gieng..Thang mu<?>i hai)

       %c     th<?>i gian va ngay c<?>a mi<?>n d<?>a phuong (v.d. 14:36:33 MSD
              Th<?> ba  26 Thg 4 2005)

       %C     th<?> k<?>, gi<?>ng nhu %Y, tr<?> b<?> quen hai ch<?> s<?>
              cu<?>i cung (v.d. 21)

       %d     ngay c<?>a thang (vi d<?>, 01)

       %D     date (ambiguous); same as %m/%d/%y

       %e     ngay c<?>a thang, d<?> tr<?>ng thay cho vi<?>c dung 0 ( 1..31),
              gi<?>ng nhu %_d

       %F     full date; like %+4Y-%m-%d

       %g     last two digits of year of ISO week number (ambiguous; 00-99);
              see %G

       %G     year of ISO week number; normally useful only with %V

       %h     gi<?>ng nhu %b

       %H     gi<?> (00..23)

       %I     gi<?> (01..12)

       %j     ngay c<?>a nam (001..366)

       %k     gi<?>, co kho<?>ng tr<?>ng, tuong t<?> nhu %_H

       %l     gi<?>, co kho<?>ng tr<?>ng, tuong t<?> nhu %_H

       %m     thang (01..12)

       %M     phut (00..59)

       %n     m<?>t dong m<?>i

       %N     nano-giay (000000000..999999999)

       %p     ch<?> ra AM ho<?>c PM vi<?>t hoa c<?>a mi<?>n d<?>a phuong
              (khong ro thi r<?>ng)

       %P     gi<?>ng %p, nhung <?> d<?>ng ch<?> thu<?>ng

       %q     quy c<?>a nam year (1..4)

       %r     th<?>i gian, tinh theo 12 gi<?>, c<?>a mi<?>n d<?>a phuong (v.d.
              11:11:04 CH)

       %R     th<?>i gian, tinh theo 24 gi<?> (gi<?>ng nhu %H:%M)

       %s     seconds since the Epoch (1970-01-01 00:00 UTC)

       %S     giay (00..60); c<?>n 60 d<?> thich h<?>p v<?>i giay nh<?>y qua
              phut khac

       %t     kho<?>ng tab ngang

       %T     th<?>i gian (gi<?>ng nhu %H:%M:%S)

       %u     ngay c<?>a tu<?>n (1..7);  1 tuong <?>ng v<?>i Th<?> Hai

       %U     s<?> th<?> t<?> c<?>a tu<?>n trong nam v<?>i Ch<?> Nh<?>t la
              ngay d<?>u tu<?>n (00..53)

       %V     s<?> th<?> t<?> c<?>a tu<?>n ISO v<?>i Th<?> hai la ngay d<?>u
              tu<?>n (01..53)

       %w     ngay trong tu<?>n (0..6);  0 la Ch<?> Nh<?>t

       %W     s<?> th<?> t<?> c<?>a tu<?>n trong nam v<?>i Th<?> Hai la ngay
              d<?>u tu<?>n (00..53)

       %x     locale's date (can be ambiguous; e.g., 12/31/99)

       %X     gi<?> theo quy d<?>nh c<?>a mi<?>n d<?>a phuong (v.d. 23:13:48)

       %y     last two digits of year (ambiguous; 00..99)

       %Y     nam (v.d. 2007)

       %z     +hhmm mui gi<?> d<?>ng s<?> (v.d., -0400)

       %:z    +hh:mm mui gi<?> d<?>ng s<?> (v.d., -04:00)

       %::z   +hh:mm:ss mui gi<?> d<?>ng s<?> (v.d., -04:00:00)

       %:::z  mui gi<?> d<?>ng s<?> co ":" d<?>n m<?>c chinh xac da yeu c<?>u
              (v.d., -04, +05:30)

       %Z     vi<?>t t<?>t mui gi<?> theo ki<?>u b<?>ng ch<?> cai  (v.d., EDT,
              CST)

       M<?>c d<?>nh la l<?>nh ngay thang d<?>m tru<?>ng s<?> b<?>ng s<?> khong
       (0). Theo sau "%" co th<?> d<?>t nh<?>ng tuy ch<?>n c<?> sau:

       -      (d<?>u g<?>ch n<?>i) khong d<?>m tru<?>ng

       _      (d<?>u g<?>ch du<?>i) d<?>m tru<?>ng b<?>ng d<?>u cach

       0      (s<?> khong) d<?>m tru<?>ng b<?>ng s<?> khong

       +      pad with zeros, and put '+' before future years with >4 digits

       ^      in ra ch<?> hoa n<?>u co th<?>

       #      in ra ch<?> d<?>i di<?>n n<?>u co th<?>

       Sau m<?>i c<?> cung co th<?> d<?>t b<?> r<?>ng tru<?>ng, la con s<?>
       th<?>p phan; r<?>i (cung tuy ch<?>n) s<?> s<?>a d<?>i, ho<?>c la E d<?>
       dung cac s<?> d<?>i di<?>n xen k<?> c<?>a mi<?>n d<?>a phuong (n<?>u
       co) ho<?>c la O d<?> dung cac ky hi<?>u thu<?>c s<?> xen k<?> c<?>a
       mi<?>n d<?>a phuong (n<?>u co).

VI D<?>
       Chuy<?>n giay t<?> epoch (1970-01-01 UTC) thanh ngay

              $ date --date='@2147483647'

       Hi<?>n th<?> th<?>i gian b<?> tay nu<?>c M<?> (dung tzselect(1) d<?>
       tim TZ)

              $ TZ='America/Los_Angeles' date

       Hi<?>n th<?>i gian d<?>a phuong luc 9AM ngay th<?> 6 s<?>p t<?>i <?>
       b<?> Tay nu<?>c M<?>

              $ date --date='TZ="America/Los_Angeles" 09:00 next Fri'

DATE STRING
       The --date=STRING is a mostly free format human readable date string
       such as "Sun, 29 Feb 2004 16:21:42 -0800" or "2004-02-29 16:21:42" or
       even "next Thursday".  A date string may contain items indicating
       calendar date, time of day, time zone, day of week, relative time,
       relative date, and numbers.  An empty string indicates the beginning of
       the day.  The date string format is more complex than is easily
       documented here but is fully described in the info documentation.

TAC GI<?>
       Vi<?>t b<?>i David MacKenzie.

THONG BAO L<?>I
       Thong bao l<?>i cho: <bug-coreutils@gnu.org>. Thong bao l<?>i d<?>ch
       cho: <http://translationproject.org/team/vi.html>.
       Trang ch<?> GNU coreutils: <https://www.gnu.org/software/coreutils/>
       Tr<?> giup chung v<?> s<?> d<?>ng ph<?>n m<?>m GNU:
       <https://www.gnu.org/gethelp/>
       Report any translation bugs to <https://translationproject.org/team/>

B<?>N QUY<?>N
       Copyright (C) 2026 Free Software Foundation, Inc.  Gi<?>y phep GPL pb3+
       : Gi<?>y phep Cong c<?>ng GNU phien b<?>n 3 hay sau
       <https://gnu.org/licenses/gpl.html>.
       Day la ph<?>n m<?>m t<?> do: b<?>n co quy<?>n s<?>a d<?>i va phat hanh
       l<?>i no. KHONG CO B<?>O HANH GI C<?>, v<?>i di<?>u khi<?>n du<?>c phap
       lu<?>t cho phep.

XEM THEM
       Tai li<?>u d<?>y d<?> co t<?>i:
       <https://www.gnu.org/software/coreutils/date>
       ho<?>c s<?>n co n<?>i b<?> thong qua: info '(coreutils) date
       invocation'

D<?>CH
       B<?>n d<?>ch ti<?>ng Vi<?>t c<?>a trang hu<?>ng d<?>n nay do

       th<?>c hi<?>n.

       B<?>n d<?>ch nay la Tai li<?>u Mi<?>n phi; d<?>c Gi<?>y phep Cong
       c<?>ng GNU Phien b<?>n 3 <https://www.gnu.org/licenses/gpl-3.0.html>
       ho<?>c m<?>i hon d<?> bi<?>t cac di<?>u kho<?>n b<?>n quy<?>n.  Chung
       toi cho r<?>ng KHONG CO TRACH NHI<?>M PHAP LY.

       N<?>u b<?>n tim th<?>y m<?>t s<?> sai sot trong b<?>n d<?>ch c<?>a
       trang hu<?>ng d<?>n nay, vui long g<?>i thu d<?>n TODO <>.

GNU coreutils 9.11            Thang 4 nam 2026                         DATE(1)