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en:sidebar:remoteapi:apiref:format:time:example [13/01/2016 10:13] stan [Reverse operation] |
en:sidebar:remoteapi:apiref:format:time:example [03/03/2021 08:55] (current) chdi [Example of time zone receiving tz] |
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| 1. Mathematical AND should be applied to the Azores [[timezone|timezone]] using **0xf000ffff** mask. | 1. Mathematical AND should be applied to the Azores [[timezone|timezone]] using **0xf000ffff** mask. | ||
| + | |||
| + | Each time decimal signed value should be performed to binary value using [[http://https://www.exploringbinary.com/twos-complement-converter/| decimal to two’s complement ]]method | ||
| + | |||
| <code=javascript> | <code=javascript> | ||
| -3600 & 0xf000ffff | -3600 & 0xf000ffff | ||
| Line 19: | Line 22: | ||
| =====Reverse operation===== | =====Reverse operation===== | ||
| + | tz=-134155792 | ||
| - | Time zone is presented as signed short. | + | 1) Mathematical AND should be applied to the ‘tz’ parameter using **0xffff** mask. |
| - | + | ||
| - | tz=-134155792 in hex 0xf800f1f0 | + | |
| - | + | ||
| - | 1) Value using **0x0fff0000** mask is [[dst|dst]]. | + | |
| - | 0x08000000 - none. | + | |
| - | + | ||
| - | 2) Value using **0xffff** mask is Time zone. | + | |
| - | ---- | + | |
| <code=javascript> | <code=javascript> | ||
| - | 0xf1f0 | + | -134155792 & 0xffff |
| + | 61936 | ||
| + | </code> | ||
| + | <note important> Only if the original tz value < 0 (it is in this example), then mathematical OR should be applied to the result using the mask 0xffff0000. If tz value > 0, the following step is not needed.</note> | ||
| + | 2) Mathematical OR should be applied to the result using the mask **0xffff0000**. | ||
| + | <code=javascript> | ||
| + | 61936 | 0xffff0000 | ||
| -3600 | -3600 | ||
| </code> | </code> | ||
| + | [[timezone|timezone]] (-01:00) Azores. | ||
| + | ---- | ||
| + | tz=-134155792 in hex 0xf800f1f0 | ||
| - | [[timezone|Time zone]] (-01:00) Azores. | + | Value using **0x0fff0000** mask is [[dst|dst]]. |
| + | 0x08000000 - none. | ||
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