Last night (between Saturday and Sunday) officially ended Daylight Savings Time and Standard Time began. At 2:00 AM, clock hands moved one hour back to 01:00.
For iPhone devices, just click on Settings> General> Date & Time> and make sure the Auto Adjust button is active and the local clock is set to 'Jerusalem'.
On Android devices, just click on: Settings> Date & Time> and make sure the Automatic Date & Time button is active.
Daylight savings time lasts 210 days and will start again on Friday, March 29, 2019; 22 Adar 5769.