# Time.mktime

**URL:** <https://www.ruby-forum.com/t/time-mktime/125800>\
**Category:** Development\
**Created:** [January 12, 2008, 5:09am UTC](https://www.ruby-forum.com/t/time-mktime/125800 "2008-01-12T05:09:12Z")\
**Posts on this page:** 4\
**Page:** 1

<div class="post-metadata">

**Author:** ![Tadayoshi\_F](https://www.ruby-forum.com/letter_avatar_proxy/v4/letter/t/2bfe46/32.png) [@Tadayoshi\_F](https://www.ruby-forum.com/u/Tadayoshi_F)\
**Post date:** [January 12, 2008, 5:09am UTC](https://www.ruby-forum.com/t/time-mktime/125800/1 "2008-01-12T05:09:12Z")

</div>

1.8 e$B$Ge(B Time.mktime(2001,2,3,24)  
e$B$O$?$@HO0O30%(%i!\<$G$9$,!"e(B1.9 e$B$G$O0c$&e(B  
e$B$h$&$G$9!#e(B24e$B;~$r5v$9$D$b$@$C$?$N$+$b$7$l$^$;$s$,!"7k6I%(%i!\<$K$J$C$F$7e(B  
e$B$^$$$^$9!#e(B

$ ruby19 -v -e ‘Time.mktime(2001,2,3,24)’  
ruby 1.9.0 (2008-01-12 revision 0) [i386-freebsd6.2]  
-e:1:in `mktime': couldn't generate a time (ArgumentError) from -e:1:in`’

$ ruby18 -v -e ‘Time.mktime(2001,2,3,24)’  
ruby 1.8.6 (2008-01-11 patchlevel 5000) [i386-freebsd6.2]  
-e:1:in `mktime’: argument out of range (ArgumentError)  
from -e:1

1.9 e$B$G$bDL\>o$O!"HO0O30%(%i!\<$G$9$h$M!#e(B

$ ruby19 -v -e ‘Time.mktime(2001,13)’  
ruby 1.9.0 (2008-01-12 revision 0) [i386-freebsd6.2]  
-e:1:in `mktime': argument out of range (ArgumentError) from -e:1:in`’

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<div class="post-metadata">

**Author:** ![Tadayoshi\_F](https://www.ruby-forum.com/letter_avatar_proxy/v4/letter/t/2bfe46/32.png) [@Tadayoshi\_F](https://www.ruby-forum.com/u/Tadayoshi_F)\
**Post date:** [January 13, 2008, 4:41pm UTC](https://www.ruby-forum.com/t/time-mktime/125800/2 "2008-01-13T16:41:09Z")

</div>

In article [removed\_email\_address@domain.invalid](mailto:removed_email_address@domain.invalid),  
Tadayoshi F. [removed\_email\_address@domain.invalid](mailto:removed_email_address@domain.invalid) writes:

> 1.8 e$B$Ge(B Time.mktime(2001,2,3,24) e$B$O$?$@HO0O30%(%i!\<$G$9$,!"e(B1.9 e$B$G$O0c$&e(B  
> e$B$h$&$G$9!#e(B24e$B;~$r5v$9$D$b$@$C$?$N$+$b$7$l$^$;$s$,!"7k6I%(%i!\<$K$J$C$F$7e(B  
> e$B$^$$$^$9!#e(B

[ruby-core:14517] e$B$+$i$N%9%l%C%I$Ge(B mktime e$B$N7k2L$re(B localtime  
e$B$7$Fe(B round trip e$B$9$k8!::$rF~$l$?$;$$$G$9$M!#e(B

e$B$3$l$G%(%i!\<$K$7$F$$$$$+5?Ld$N$D$$$?;~9o$O0J2\<$Ne(B 3e$B\<oN`$K$J$je(B  
e$B$^$7$?!#e(B

- 2005-02-29 e$B$H$+B8:\_$7$J$$F|IUe(B
- TZ=EST5EDT e$B$G$Ne(B 2007-03-11 02:00:00 e$B$J$I$NB8:\_$7$J$$;~9oe(B
- 2001-02-03 24:00:00 e$B$H$+e(B 24:00:00

e$B$d$C$Qe(B round trip e$B$J8!::$O87$7$9$.$k$+$J$!!#e(B

---

<div class="post-metadata">

**Author:** ![Tadayoshi\_F](https://www.ruby-forum.com/letter_avatar_proxy/v4/letter/t/2bfe46/32.png) [@Tadayoshi\_F](https://www.ruby-forum.com/u/Tadayoshi_F)\
**Post date:** [January 14, 2008, 8:32am UTC](https://www.ruby-forum.com/t/time-mktime/125800/3 "2008-01-14T08:32:20Z")

</div>

e$B$^$D$b$He(B e$B$f$-$R$m$G$9e(B

In message “Re: [ruby-dev:33081] Re: Time.mktime”  
on Mon, 14 Jan 2008 00:40:16 +0900, Tanaka A. [removed\_email\_address@domain.invalid](mailto:removed_email_address@domain.invalid)  
writes:

|[ruby-core:14517] e$B$+$i$N%9%l%C%I$Ge(B mktime e$B$N7k2L$re(B localtime  
|e$B$7$Fe(B round trip e$B$9$k8!::$rF~$l$?$;$$$G$9$M!#e(B

|e$B$d$C$Qe(B round trip e$B$J8!::$O87$7$9$.$k$+$J$!!#e(B

e$B$=$s$J5$$,$7$^$9!#$J$s$+HO0O30$G$bNI$-$K7W$i$C$F$/$l$?J}$,e(B  
Rubye$BE\*$J0u\>]$,$"$j$^$9$7!#e(B

---

<div class="post-metadata">

**Author:** ![Tadayoshi\_F](https://www.ruby-forum.com/letter_avatar_proxy/v4/letter/t/2bfe46/32.png) [@Tadayoshi\_F](https://www.ruby-forum.com/u/Tadayoshi_F)\
**Post date:** [January 16, 2008, 1:49pm UTC](https://www.ruby-forum.com/t/time-mktime/125800/4 "2008-01-16T13:49:23Z")

</div>

> e$B$d$C$Qe(B round trip e$B$J8!::$O87$7$9$.$k$+$J$!!#e(B

e$B$3$lKx$N$h$&$K\>!\<j$K@55,2=$9$k$3$H\<+BN$O!"NI$$$+0-$$$+9M$($+$?\<!Bh$@$He(B  
e$B;W$&$s$G$9$,!“MxMQ\<T$,A[Dj$7$K$/$$%(%i!\<$O$”$j$=$&$G$9$M!#e(B

e$BIi$N1\<IC$r4\*Dj$7$J$+$C$?F|IU$r1\<IC$r9MN8$9$k%7%9%F%`$GFI$`$H%(%i!\<$K$J$Ce(B  
e$B$?$j$7$^$9$+$M!#e(B