Use UTC time for reservation interactions. (#2860)
Use UTC time for reservation interactions. (#2860)

Use utc for now() so that alternative locales are not problematic.
balopat/Cirq,balopat/Cirq,quantumlib/Cirq,balopat/Cirq,quantumlib/Cirq,quantumlib/Cirq,quantumlib/Cirq,quantumlib/Cirq