Power Wake reason.EC.LidOpen in terminal log but noone opened it during the night

when i give this command in terminal i see that system thinks my lid was opened during the night and i'm sure nobody didn't do it.

log show --style syslog | fgrep "Wake reason"

this is log:

019-04-10 01:16:57.958354+0200  localhost kernel[0]: (AppleACPIPlatform) AppleACPIPlatformPower Wake reason: RTC (Alarm)

2019-04-10 01:16:57.958356+0200  localhost kernel[0]: (AppleACPIPlatform) AppleACPIPlatformPower Wake reason: RTC (Alarm)

2019-04-10 06:15:12.663133+0200  localhost kernel[0]: (AppleACPIPlatform) AppleACPIPlatformPower Wake reason: EC.LidOpen (User)

2019-04-10 06:15:12.663163+0200  localhost kernel[0]: (AppleACPIPlatform) AppleACPIPlatformPower Wake reason: EC.LidOpen (User)

2019-04-10 07:14:18.749224+0200  localhost kernel[0]: (AppleACPIPlatform) AppleACPIPlatformPower Wake reason: EC.LidOpen (User)

2019-04-10 07:14:18.749254+0200  localhost kernel[0]: (AppleACPIPlatform) AppleACPIPlatformPower Wake reason: EC.LidOpen (User)

i opened it at 7.14, but at 6.15 everybody was sleeping. also at 1.16 i don't understand this RTC thing.

macbook was on battery during the night. bluetooth is off. i also read this link below, don't see reason for wakings.

https://support.apple.com/en-us/HT204760

so what is this reason: EC.LidOpen (User) and reason: RTC (Alarm) ?