y, year
d, day of month
M, month

H, hour-of-day (0-23)
h, clock-hour-of-am-pm (1-12)
m, minute-of-hour
s, second-of-minute

Z, zone-offset
            

# Single Format
mapping = {
    'mappings': {
        'properties': {
            'timestamp': {'type': 'date', "format" : "yyyy-MM-dd HH:mm:ss"},
            'latitude': {'type': 'float',},
            'longitude': {'type': 'float',},
        },
    },
}
            

# Multiple Formats
mapping = {
    'mappings': {
        'properties': {
            'timestamp': {'type': 'date', "format": "yyyy-MM-dd HH:mm:ss||yyyy-MM-dd||epoch_millis"},
            'latitude': {'type': 'float',},
            'longitude': {'type': 'float',},
        },
    },
}
            

DateTimeFormatter

Date Format