# \[Bug #780\] Time#strftime $B$G!"%U%i%0(B 0 $B$,I}$H2r\<a$5$l$k(B

**URL:** <https://www.ruby-forum.com/t/bug-780-time-strftime-b-g-u-i-0-b-0-b-i-h2r-a-5-l-k-b/153991>\
**Category:** Development\
**Created:** [November 24, 2008, 12:26pm UTC](https://www.ruby-forum.com/t/bug-780-time-strftime-b-g-u-i-0-b-0-b-i-h2r-a-5-l-k-b/153991 "2008-11-24T12:26:22Z")\
**Posts on this page:** 4\
**Page:** 1

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**Author:** ![tadayoshi\_funaba](https://www.ruby-forum.com/letter_avatar_proxy/v4/letter/t/f0a364/32.png) [@tadayoshi\_funaba](https://www.ruby-forum.com/u/tadayoshi_funaba)\
**Post date:** [November 24, 2008, 12:26pm UTC](https://www.ruby-forum.com/t/bug-780-time-strftime-b-g-u-i-0-b-0-b-i-h2r-a-5-l-k-b/153991/1 "2008-11-24T12:26:22Z")

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Bug #780: Time#strftime e$B$G!"%U%i%0e(B 0 e$B$,I}$H2r\<a$5$l$ke(B  
[http://redmine.ruby-lang.org/issues/show/780](http://redmine.ruby-lang.org/issues/show/780)

e$B5/I\<\<Te(B: tadayoshi funaba  
e$B%9%F!\<%?%9e(B: Open, e$BM%@hEYe(B: Normal

$ ./ruby -e “p Time.mktime(1970,1,1).strftime(‘%0N’)”  
“”

%0Ne$B!"e(B%0L e$B$,I}$,Nm$NJ8;zNs$r:n$j=P$7$^$9!#$7$+$7!"e(B0  
e$B$O0l4S$7e(B  
e$B$F%U%i%0$H$7$F2r\<a$5$l$k$Y$-$@$H;W$$$^$9!#e(B

---

<div class="post-metadata">

**Author:** ![tadayoshi\_funaba](https://www.ruby-forum.com/letter_avatar_proxy/v4/letter/t/f0a364/32.png) [@tadayoshi\_funaba](https://www.ruby-forum.com/u/tadayoshi_funaba)\
**Post date:** [November 24, 2008, 2:27pm UTC](https://www.ruby-forum.com/t/bug-780-time-strftime-b-g-u-i-0-b-0-b-i-h2r-a-5-l-k-b/153991/2 "2008-11-24T14:27:02Z")

</div>

e$BA0ED$G$9!#e(B

2008/11/24 20:21 tadayoshi funaba [removed\_email\_address@domain.invalid](mailto:removed_email_address@domain.invalid):

> $ ./ruby -e “p Time.mktime(1970,1,1).strftime(‘%0N’)”  
> “”
> 
> %0Ne$B!"e(B%0L e$B$,I}$,Nm$NJ8;zNs$r:n$j=P$7$^$9!#$7$+$7!"e(B0 e$B$O0l4S$7e(B  
> e$B$F%U%i%0$H$7$F2r\<a$5$l$k$Y$-$@$H;W$$$^$9!#e(B

e$B$H$j$“$($:\>e5-$N%1!\<%9$O=$@5$7$^$7$?$,!”$=$b$=$be(B\_e$B$N$h$&$J%U%i%0e(B  
e$B$,8z$$$F$J$$$h$&$G$9$M!#e(B

$ ruby-trunk -ve “p Time.at(0.012345678).strftime(‘%\_10N’)”  
ruby 1.9.0 (2008-11-24 revision 20338) [i686-linux]  
“0123456780”

e$B$3$l$Oe(B"012345678 “e$B$K$J$k$Y$-$G$7$g$&$+e(B?  
e$B$”$k$$$O@hF,$Ne(B"0"e$B$b6uGr$K$7$?J}$,$$$$$s$G$9$+$M$(!#e(B

# GNU datee$B$@$H6uGr$K$J$k$h$&$G$9$,!"$=$b$=$b6uGr$r1&$K5M$a$k$+e(B

# e$B:8$K5M$a$k$+$,0c$&$N$G!“$”$^$j;29M$K$J$i$J$$$+$b!#e(B

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<div class="post-metadata">

**Author:** ![tadayoshi\_funaba](https://www.ruby-forum.com/letter_avatar_proxy/v4/letter/t/f0a364/32.png) [@tadayoshi\_funaba](https://www.ruby-forum.com/u/tadayoshi_funaba)\
**Post date:** [November 24, 2008, 2:57pm UTC](https://www.ruby-forum.com/t/bug-780-time-strftime-b-g-u-i-0-b-0-b-i-h2r-a-5-l-k-b/153991/3 "2008-11-24T14:57:41Z")

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> > %0Ne$B!"e(B%0L e$B$,I}$,Nm$NJ8;zNs$r:n$j=P$7$^$9!#$7$+$7!"e(B0 e$B$O0l4S$7e(B  
> > e$B$F%U%i%0$H$7$F2r\<a$5$l$k$Y$-$@$H;W$$$^$9!#e(B
> 
> e$B$H$j$"$($:\>e5-$N%1!\<%9$O=$@5$7$^$7$?$,!"$=$b$=$be(B\_e$B$N$h$&$J%U%i%0e(B  
> e$B$,8z$$$F$J$$$h$&$G$9$M!#e(B

e$B$J$k$[$I!#e(B

> $ ruby-trunk -ve “p Time.at(0.012345678).strftime(’%\_10N’)”  
> ruby 1.9.0 (2008-11-24 revision 20338) [i686-linux]  
> “0123456780”
> 
> e$B$3$l$Oe(B"012345678 “e$B$K$J$k$Y$-$G$7$g$&$+e(B?  
> e$B$”$k$$$O@hF,$Ne(B"0"e$B$b6uGr$K$7$?J}$,$$$$$s$G$9$+$M$(!#e(B

e$BHyL/$G$9$M!#e(BDateTime e$B$N$[$&$O!"0JA0$N$h$&$Ke(B gnu date  
e$BIw$K$J$C$F$^$9$,!"e(B  
e$B$3$l$b$A$g$C$HJQ$G$9$7!#e(B

e$B:#9M$($?8B$j$G$O!"e(B%N e$B$K$D$$$F$Oe(B (%L  
e$B$b4pK\E\*$KF1$8$G$9$,e(B)e$B!"e(B

“0123456780”

e$B$H$J$k$N$,$$$$$h$&5$$,$7$^$9!#$=$&$G$"$l$P!"e(BDateTime  
e$B$N$[$&$b=$@5$7$^$9!#e(B

---

<div class="post-metadata">

**Author:** ![tadayoshi\_funaba](https://www.ruby-forum.com/letter_avatar_proxy/v4/letter/t/f0a364/32.png) [@tadayoshi\_funaba](https://www.ruby-forum.com/u/tadayoshi_funaba)\
**Post date:** [November 24, 2008, 3:04pm UTC](https://www.ruby-forum.com/t/bug-780-time-strftime-b-g-u-i-0-b-0-b-i-h2r-a-5-l-k-b/153991/4 "2008-11-24T15:04:46Z")

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e$BA0ED$G$9!#e(B

2008/11/24 22:52 Tadayoshi F. [removed\_email\_address@domain.invalid](mailto:removed_email_address@domain.invalid):

> e$B:#9M$($?8B$j$G$O!"e(B%N e$B$K$D$$$F$Oe(B (%L e$B$b4pK\E\*$KF1$8$G$9$,e(B)e$B!"e(B
> 
> “0123456780”
> 
> e$B$H$J$k$N$,$$$$$h$&5$$,$7$^$9!#$=$&$G$"$l$P!"e(BDateTime e$B$N$[$&$b=$@5$7$^$9!#e(B

e$B;d$b$=$&;W$$$^$9!#B\>$NJ}$+$iFC$K0[O@$,$J$1$l$Pe(BDateTimee$B$N=$@5$r$\*4j$$$7$^$9!#e(B