# \[A|M|P\]TPRO\_HOURLY : GMT or local time? **URL:** \ **Category:** SMOKE\ **Created:** [May 13, 2021, 7:35am UTC](https://forum.cmascenter.org/t/a-m-p-tpro-hourly-gmt-or-local-time/2334 "2021-05-13T07:35:47Z")\ **Posts on this page:** 3\ **Page:** 1
**Author:** ![gwangjin](https://yyz1.discourse-cdn.com/flex027/user_avatar/forum.cmascenter.org/gwangjin/32/1336_2.png) [@gwangjin](https://forum.cmascenter.org/u/gwangjin)\ **Post date:** [May 13, 2021, 7:35am UTC](https://forum.cmascenter.org/t/a-m-p-tpro-hourly-gmt-or-local-time/2334/1 "2021-05-13T07:35:47Z")
Hello, I am using the default file “amptpro\_hourly.csv” in South Korea (OUTZONE is 9). But I obtained the right result when I used OUTZONE as 0. Does “0100” mean GMT in manual ([8.3. Temporal Allocation Files](https://www.cmascenter.org/smoke/documentation/4.8.1/html/ch08s03.html#sect_input_tpro_hourly)) or local time? Thank you. ---
**Author:** ![bbaek](https://yyz1.discourse-cdn.com/flex027/user_avatar/forum.cmascenter.org/bbaek/32/22_2.png) [@bbaek](https://forum.cmascenter.org/u/bbaek)\ **Post date:** [May 13, 2021, 10:07am UTC](https://forum.cmascenter.org/t/a-m-p-tpro-hourly-gmt-or-local-time/2334/2 "2021-05-13T10:07:37Z")
The hourly temporal profiles should be in local standard time (LST). If you are generating the emissions output in GMT, then your OUTZONE=0 setting is correct. Here is the details on how OUTZONE should be set. [https://www.cmascenter.org/smoke/documentation/4.5/html/ch02s10s04.html#tbl\_concepts\_outzone](https://www.cmascenter.org/smoke/documentation/4.5/html/ch02s10s04.html#tbl_concepts_outzone) ---
**Author:** ![gwangjin](https://yyz1.discourse-cdn.com/flex027/user_avatar/forum.cmascenter.org/gwangjin/32/1336_2.png) [@gwangjin](https://forum.cmascenter.org/u/gwangjin)\ **Post date:** [May 14, 2021, 1:31am UTC](https://forum.cmascenter.org/t/a-m-p-tpro-hourly-gmt-or-local-time/2334/3 "2021-05-14T01:31:52Z")
Thank you very much for your comment.