If you need do some maths around Eastern Sunday, something like this should do the trick:
...
var int year = now.getYear()
var int a = year % 19
var int b = year / 100
var int c = year % 100
var int d = b / 4;
var int e = b % 4;
var int f = (b + 8) / 25;
var int g = (b - f + 1) / 3;
var int h = (19 * a + b - d - g + 15) % 30;
var int i = c / 4;
var int k = c % 4;
var int L = (32 + 2 * e + 2 * i - h - k) % 7;
var int m = (a + 11 * h + 22 * L) / 451;
var int month = (h + L - 7 * m + 114) / 31;
var int day = ((h + L - 7 * m + 114) % 31) + 1
...
var easterSunday = LocalDate.of(year, month, day)
var int dayOfYear = now.getDayOfYear()
...
(dayOfYear==easterSunday.getDayOfYear-2)
It’s worth noting that most of this sort of thing can be handled by Ephemeris. If the default configuration for your country and region doesn’t use the right calculation (e.g. you live in the US but follow the Eastern calculation for Easter) you can create a custom config that uses the right calculation.
Then in a rule you can just use the Ephemeris Actions.
// If today is Christmas
if(getBankHolidayName == "CHRISTMAS")
// How many days until Easter?
logInfo("Easter", "Easter is " + getDaysUntil("EASTER") + " days away.")
// Is today a holiday?
if(isBankHoliday)
// Is today the weekend?
if(isWeekend)
Most of the Christian (latin, eastern, even Ethiopian Orthodox), Islamic, and Jewish holidays are supported. There are a couple of Hindu holidays that are not on fixed days of the solar year also supported.
These can also be used in But only if… conditions and rule triggers in UI Rules so certain rules only run on holidays and others never run on holidays. You can even provide offsets, such as only running a rule if tomorrow is a holiday and the like. You’ll have to use a Script Condition though if you want to test for specific holidays.
Also note it supports daysets so instead of needing to test whether today is between 1-5 you can just test for isWeekend.
As your rule is triggering only at 5 pm or 8 pm, your first if condition will never be true. (maybe you changed something?)
I’m not sure about DateTime as var (I’m pretty sure you want to use it as a DateTime Item Type, which could work, but I’m not sure about the key word)
return has to have a ; at the end - because otherwise the next word will be used as the return value, which can’t be delivered… the meaning of return; is: “make a break and no return value at all”
as the var nachricht will never be empty, the last if condition will always be true.
I’m not sure about the double {} either. Maybe better to use () instead of the outer {} in log Command.
You should NOT use logError at all, as the messages aren’t Error Messages. Please be aware that frontail has a filter function, this is much better then misusing the color codes
you should consider to change the Item names. Then it’s possible to write a much shorter rule by using a group item.
I need to ask again since I still struggle with time Zoned epoch time:
I need the current epoch in seconds for the current time and not the UTC time.
When I use this:
var newDate = new DateTimeType().getZonedDateTime().toInstant.toEpochMilli / 1000
I get the epoche time but for UTC time even though my computer is set to the correct time date etc:
[08:43:03] root@openhab:~# timedatectl
Local time: Sun 2021-03-28 08:43:04 CEST
Universal time: Sun 2021-03-28 06:43:04 UTC
RTC time: n/a
Time zone: Europe/Berlin (CEST, +0200)
System clock synchronized: yes
systemd-timesyncd.service active: yes
RTC in local TZ: no
So how do I get the epoch time in seconds for the correct time zone?
I am reading an xml URL where I read an Epoch value 1617982380
Type string : start_1 [stateTransformation=“XPath:/e2eventlist/e2event[2]/e2eventstart/text()”]
is it possible to convert this epoch directly to datetime or something similar? Or is it necessary to create an epoch Item as well linked to this channel and a datetime Item which needs to be updated by a rule?
Who can say. Which binding is involved, which OH version?
OH3 HTTP binding allows for chained transformations. That would allow to use a JS to convert an epoch into a readable date-time for a OH DateTime Item.
Well, if you look at the binding docs you will see that you can chain one transformation after another, using a magic “∩”.character.
So you could use XPATH to extract the epoch, which could be passed to a JS javascript, that then parsed the epoch and converted to ISO text.
But, um, you do know you can post an epoch value directly to a DateTime type Item?
You started with an epoch. Epoch simply have no zone and are always UTC, so that’s how the DateTime interprets it.
What’s your objective, display in local time or actually force a faked zone into the Item state?
I would like to have a faked zone in the item state, so the item itself is having the same time like my openhab. So the item state is the one i my local timezone.
I know I can display my local time with Startzeit [%1$tH:%1$tM], but unfortunatly this is not sufficiant for me.
Have you investigated what happens when you do that? So far as I know, openHAB willconvert stored DateTimes to your local zone before formatting for display.
