# General You can find all variables that you can use here, depending on the document type:
**Travel**
Document
- [Document](https://help.advatra.com/books/technical-information/page/variables#bkmrk-document) - [Dossier](https://help.advatra.com/books/technical-information/page/variables#bkmrk-dossier) - [Customer](https://help.advatra.com/books/technical-information/page/variables#bkmrk-customer) - [TotalPrice](https://help.advatra.com/books/technical-information/page/variables#bkmrk-totalprice) - [Travellers](https://help.advatra.com/books/technical-information/page/variables#bkmrk-traveller) - Products - [Document](https://help.advatra.com/books/technical-information/page/variables#bkmrk-document) - [Dossier](https://help.advatra.com/books/technical-information/page/variables#bkmrk-dossier) - [Customer](https://help.advatra.com/books/technical-information/page/variables#bkmrk-customer) - [TotalPrice](https://help.advatra.com/books/technical-information/page/variables#bkmrk-totalprice) - Positions
If you want to get a deeper technology background, have a look at the [Apache FreeMarker Library.](https://freemarker.apache.org/) ## Date formatting For example, formatting the current date: ```JSON ${.now?string["dd.MM.YYYY"]} //returns 01.01.2022 ${.now?string["d. MMMM YYYY"]} //returns 1. January 2022 ```
See details about formatting
FormatDefinition
**Month**
M Month, from 1 through 12
MM Two digit month, from 01 through 12
MMM Abbreviated name of the month, for example: Jan, Feb, etc.
MMMM Full name of the month, for example: January, February, etc.
**Day**
d Day of the month from 1 through 31
dd Day of the month from 01 through 31
ddd Standard abbreviation for the day of the week, for example: Mon, Tue, etc.
dddd Full name of the day of the week, for example: Monday, Tuesday, etc.
**Year**
y Year from 0 to 99
yy Year from 00 to 99
yyy Year with minimum of 3 digits
yyyy Year as a four digit number
**Hour**
h Hour using 12-hour clock from 1 - 12
hh Hour using 12-hour clock from 01 - 12
H Hour using 24-hour clock from 0 - 24
HH Hour using 24-hour clock from 00 - 24
**Minute**
m Hour using 12-hour clock from 1 - 12
mm Hour using 12-hour clock from 01 - 12
**Second**
s Second, from 0 through 59
ss Second, from 00 through 59
**Other**
t First character of the AM/PM designator
tt AM/PM designator
T A literal to separate date and time in 8061 or other formats
z Hours offset from UTC, with no leading zeros — Example: -5 or +530
zz Hours offset from UTC, with leading zero — Example: -05 or +0530
zzz Hours and minutes offset from UTC, with leading zeros — Example -0500 or +0530
g or gg Period or era, such as A.D.
K Zone information
## Lists If you want to repeat something, for example, all products in an offer. ```JavaScript [#list products as product] // Use "product" for one product [/#list] ```
## Sorting You can sort lists directly in the export, for example to display all products, sorted by the field start. ```JSON [#list products?sort_by('start') as product] // the products get listed, sorted by "start" [/#list] ```